Grisham stopped moving.
The last earth seal slid into place with a low rumble.
Stone fused with stone, and the final hive entrance disappeared as if it had never existed. Dust fell slowly, and the cave wall became smooth and solid again.
Essence Equation runes slithered over the stones, strengthening the seal. Merely digging through the seal wouldn't be enough anymore. One needed to destroy the restriction-type runes to exit the cave.
One glance at the runes was enough to tell that the restrictive-type runes were not something Grisham could cast on his own using his late-stage Foundation Establishment realm. A Lord-level Spirit cultivator had to have been involved in this incident who had merely used Grisham as his medium to pull off such a feat.
By this point, only one opening remained. The one Heilam had forced open earlier.
Grisham lowered his hands and let out a long sigh. It was slow and calm, as if he felt regret rather than fear. He turned to face Heilam.
