The door to the class opened.
And then immediately bounced back.
The class turned to find a young man standing in the hallway, one hand pressed against his nose, glasses askew on his face. He blinked once. Pushed the glasses back up. Then stepped through the doorway more carefully this time, as though the door had done something unreasonable and he was choosing to be the bigger person about it.
He was young — noticeably younger than Kara, younger than any instructor they had probably expected. Slim, slightly disheveled in the way of someone who had dressed carefully that morning and then forgotten about it. His jacket was straight but one collar point had folded inward without his noticing. He carried a single notebook under one arm and nothing else, which for an academic seemed almost suspicious.
He made it approximately four steps into the room before his foot caught the edge of the raised platform at the front.
He stumbled.
Caught himself on the podium.
The podium slid six inches to the left.
He straightened it. Straightened his glasses. Straightened his jacket collar — the wrong one.
Then he turned to face the class with the bright unbothered expression of someone who had made peace long ago with the relationship between his body and the physical world.
"Good morning," he said cheerfully. "I'm Instructor Varnett. Ellis Varnett. I'll be teaching Helios Theory this year."
He set his notebook on the podium.
It slid off the other side.
He didn't look at it.
"I know what you're all thinking," he continued, as though the notebook hadn't happened. "You're thinking — theory? On the first day? After everything that just happened?"
He pointed at the screen behind him, which still displayed the ranking table.
"And yes. I saw that. I heard everything." He pushed his glasses up. "Congratulations to those at the top. Condolences to those at the bottom. Moving on."
Theo made a sound that was almost a laugh.
Varnett pulled a chair from behind the podium, turned it around, and sat on it backward, arms folded across the backrest. The casual posture looked slightly accidental rather than deliberately cool, like he had simply forgotten which way chairs were supposed to face.
"Before we get into anything else," he said, leaning forward slightly, "I want to ask you something. And I want an honest answer, not an impressive one."
He looked across the room.
"How do Sparks work?"
Silence.
Not the heavy silence from earlier. More the specific silence of sixteen people trying to figure out if this was a trick question.
Theo's hand went up first.
Varnett pointed at him.
"Theo Mercer. Burst Speed. Rank fourteen." Theo blinked at being named without introduction. Varnett tapped his temple. "Perfect recall. It's my Spark. Comes in handy. Go ahead."
Theo cleared his throat.
"Right. So. Helios Energy — it's in everything, yeah? People who have more of it develop Sparks. And the more you use your Spark the stronger you get. Your potential rank is basically your ceiling — how strong you could eventually become. And your current rank is where you are right now."
He sat back with the mild satisfaction of someone who felt they had covered it adequately.
Varnett nodded slowly.
"Good," he said. "That's the version most people know. The surface layer." He looked around the room. "Anyone want to go deeper?"
A beat passed.
Then Mira Caldwell spoke from her corner seat without raising her hand.
"Helios Energy exists in two forms," she said. "Internal — present within living organisms — and atmospheric — distributed throughout the environment at varying concentrations depending on location and proximity to areas of high Helios activity." She paused briefly. "Individuals with higher internal concentrations develop Sparks. The nature of the Spark is determined by either hereditary factors — inheriting a parent's affinity — or by something intrinsic to the individual themselves, a reflection of their personality, their instincts, or their way of processing the world."
The room had gone quiet in a different way now.
"Potential rank," Mira continued, "measures compatibility with Helios Energy — specifically how much an individual's body could theoretically store and interact with at maximum development. Current rank measures how much they can effectively store and use right now. Growth occurs through repeated use of one's Spark — the act of using your ability gradually expands your effective capacity toward your potential ceiling."
She stopped.
Varnett was looking at her with an expression that had moved from attentive to genuinely pleased.
"Mira Caldwell," he said. "Cognitive Acceleration. Rank sixteen." He tilted his head slightly. "That ranking is going to confuse a lot of people for a while."
Mira said nothing.
"That," Varnett said, addressing the room, "is an excellent summary. Textbook accurate. Better than textbook, honestly." He stood up from the chair — it toppled over behind him — and moved to the board at the side of the room. "But there are a few things she didn't cover. Things that aren't in the standard texts."
He picked up a pen like object.
"Let's start with how growth actually works. Because most people understand it in theory but not in practice."
He drew two vertical rectangles on the screen — one significantly taller than the other. Then he shaded the bottom portion of each, leaving the upper sections empty.
"Two wells," he said. "One is four hundred meters deep. The other is a hundred and ten. Both of them have been filled with dirt from the top down." He tapped the shaded portions. "The dirt is what's blocking the water. The water—" he tapped the empty upper sections, "—is your Helios Energy. And the act of digging—" he drew small downward arrows inside each rectangle, "—is using your Spark."
He turned to face the class.
"Every time you use your ability, you dig a little deeper. Every ten meters, you find more water. More energy. More power. The well fills gradually from the bottom up as you clear the way." He paused. "But here is the part that matters."
He pointed at the taller rectangle.
"The four hundred meter well will always have more to give than the hundred and ten meter well. Even when the smaller well reaches its maximum — even when it is completely full, completely unlocked, every meter of dirt cleared — the deeper well still has further to go."
He set the marker down.
"The well is your body. The water is your Helios Energy. The digging is the work you put in every single day."
The room was very quiet.
"Now," Varnett said, moving back toward the screen, "here is where it gets interesting. Because those two wells don't work the same way depending on what kind of Spark user you are."
He drew a line dividing the central screen into three sections and labeled them: ENHANCER. ELEMENTAL. UNIQUE.
"Enhancers." He pointed to the first section and drew the well diagram again, this time with an arrow pointing inward. "Your Helios Energy is entirely internal. Your potential measures how much your body can store within itself. Your current rank measures how much of that you've unlocked so far. Everything you are happens inside you."
He paused.
"But here is something most people don't think about — the Helios Energy inside an Enhancer doesn't always distribute evenly across the whole body. It concentrates. It settles where it settles. And where it settles is what determines your ability."
He looked across the Enhancers in the room.
"Take Burst Speed." He nodded toward Theo. "The Helios Energy concentrated in the legs. The nervous system. Pure velocity. But not strength — because the energy didn't go there." He turned. "Impact Defense — distributed evenly across the entire body, which is why it manifests as whole body durability rather than a single enhanced attribute. Super Strength — concentrated almost entirely in the muscular system."
He pushed his glasses up.
"And Cognitive Acceleration—" he glanced toward the corner, "—every last bit of it went to the brain. Nothing physical. Nothing external. Just pure accelerated processing." He paused. "Which is also why rank sixteen in a combat evaluation is somewhat misleading."
Mira did not react.
But she was listening.
"The point," Varnett continued, "is that Enhancers don't choose what they enhance. The energy chose for them. The ability is a reflection of where the Helios Energy naturally settled during awakening. You work with what you were given."
Several Enhancers were looking at themselves with slightly new eyes.
"Elementals." He moved to the second section and drew the diagram again — this time with an arrow pointing outward, and a smaller secondary arrow pointing inward. "Different story entirely — and in some ways a more advantageous one."
He tapped the inward arrow first.
"Elementals do have internal Helios Energy. It's present in their bodies the same way it is in Enhancers. And that internal energy does provide a baseline physical enhancement — above average strength, speed, durability compared to a non-Spark user." He held up a finger. "However — and this is important — that internal enhancement in an Elemental is uneven. Partial. It concentrates in certain areas just like it does in Enhancers, but it doesn't become the ability itself. It's a side effect. A bonus. Not the main event."
He tapped the outward arrow.
"The main event is this. An Elemental can manifest Helios Energy outside their body as in the form of different elements, or they can embué small amounts of pure Helios energy into already existing elements to control them. But their potential doesn't just measure internal storage — it measures how much of the Helios Energy already present in the atmosphere around you that you can reach out and interact with."
He turned.
"A higher ranked Elemental is able to manipulate Helios energy in the atmosphere not just absorb it. So they don't just hit harder. They affect a wider area. They touch more of the world around them. Their power grows outward, not inward. The atmosphere is an ocean of Helios Energy — and your potential determines how much of that ocean you can put your hands into."
Several Elemental users were sitting noticeably straighter.
Kael was looking at his own hands — not with frustration this time. Something more focused.
"And Uniques." Varnett moved to the third section. He was quiet for a moment. "Honestly — we don't fully understand Uniques. Their Helios Energy doesn't follow either of those frameworks cleanly. It manifests in ways that can't be categorized as internal enhancement or external elemental interaction. It's rarer. Stranger. It operates by its own rules and those rules aren't always consistent between individuals."
He pushed his glasses up.
"Which makes them fascinating to study and occasionally terrifying to fight."
Across the room, Elias was seemed to be taking a very particular interest in his desk.
"Now," Varnett said, holding up a finger, "two more things. And these are the ones most people don't know."
He held up a first finger.
"Sparks can evolve. Not commonly. Not predictably. But under sufficient pressure — extreme enough conditions, sustained enough growth — an ability can shift beyond its original form. Expand past its starting classification. There are documented cases of Elementals developing secondary affinities. Enhancers whose abilities restructured entirely under stress." He paused. "It doesn't happen often. But it happens. What you are today is not necessarily the limit of what you become."
Varnett held up a second finger.
"And the last thing." He looked across the room carefully. "Sparks can evolve. Classifications can change. Current rank grows with work and time. The atmospheric reservoir is available to those who learn to reach it."
He paused.
"But potential never changes."
Silence.
"The depth of your well," he said quietly, "was fixed before you were born. No amount of training, no extreme circumstances, no evolution of ability will add a single meter to that depth."
He let that sit.
"You work with what you have. All of you."
The room absorbed this in various ways.
Theo looked like he was doing quiet mathematics about his B potential and not enjoying the results.
Naomi had gone still.
Lila looked visibly shaken.
One more thing worth noting — a rank tells you the threshold someone has crossed. It doesn't tell you exactly where within that threshold they sit. Two S potential users are not identical. Two wells classified at the same depth may still differ by meters. The letter is a category, not a precise measurement."
And across the room Kael sat with his jaw set and his eyes forward — and for just a moment something crossed his face that wasn't anger. Something quieter. The specific expression of someone who had just been reminded that amid everything that had gone wrong in the past twenty four hours, one thing remained completely untouched.
SS.
His well was the deepest.
He glanced at Seraphine
It had to be
Nobody in this room could change that.
In the corner, Mira had her notebook open and was writing quickly — not the careful precise notes from before. Something faster. Like she was capturing a thought before it escaped.
She had not known those last three things for sure.
She did now.
Varnett bent to pick up the notebook from the floor where it had fallen earlier.
He stood up.
Hit his head on the corner of the podium.
"I'm fine," he said immediately, to no one in particular.
Theo lost it completely.
And somewhere in the middle of the laughter that followed, the tension that had been sitting in the room since Kara walked out finally, briefly, loosened its grip.