On the other side of the barrier, Zora had also been startled.
"Kael..."
Her voice rang out, but it vanished the moment it touched the stone wall, swallowed without a trace.
She paused, then let out a slow breath.
"So it's soundproof as well…"
Judging from its thickness and construction, this stone door was no different from the others they'd encountered earlier. Smashing through it was clearly impossible.
Black and White instantly enlarged themselves, scrambling along the wall with Shihtzu, searching frantically for any hidden mechanisms.
Zora steadied herself and lowered her gaze to the black iron box in her hands.
So this was the trigger.
It was because she had removed the box that the mechanism had been activated.
Yet when she examined the groove again, there were no visible switches or moving parts at all.
Her eyes returned to the box.
