The creature's physical form began to collapse, its tendrils disintegrating into ash. The chamber trembled violently as the seal reactivated, drawing the darkness back into itself.
"Bob!" Naruto yelled, searching the collapsing chamber for any sign of him.
Sasuke's Sharingan scanned the area, but he shook his head. "He's gone."
Naruto clenched his fists. "No. He's not."
As the last of the darkness was sealed away, a faint glow emerged from the rubble. Bob's katana lay on the ground, its blade cracked but intact.
Naruto picked it up, his expression solemn. "He did it. He saved us."
The team escaped the chamber just as it collapsed entirely, sealing the darkness beneath the earth once more.