Shen Yu's eyes remained closed, his mind sharp and cold as steel.
Inside the boy's body, his golden energy acted as a divine hammer, systematically shattering the fragile, withered shell around the boy's dantian while the Primordial Void-Opening Seal filtered and anchored the raging spatial power.
An hour passed in agonizing silence, the air in the sealed room heavy with vibrating spatial force.
Gradually, the furious rotation of the black vortex inside Lu An's dantian began to slow down.
Over the next half hour, the dark, hungry maw gradually ceased its ravenous pull, settling into a tranquil state as if finally completely sated.
Shen Yu's eyes remained closed as his slender fingers blurred into a swift series of intricate hand seals.
A minute later, a final, gleaming golden seal shot forward into the pulsating rune floating above Lu An's abdomen.
PING!
The luminous thread of spiritual connection between Shen Yu and the boy snapped clean.
