He didn't need told twice, but when nothing jumped out at them, he straightened and loosed his grip on his sword. Just a secret compartment, from what he could see- certainly not a passage.

His eyes followed hers to the stone, then bent to pick it up and shifted closer. An odd test, but sensible upon further thought. Better this than his hand.

This close, he could see the stains and swirling- was that magic..? Eleven glanced at his fellow student, but held the stone over the opening then let it drop with a wince.

Goddess above, but he prayed nothing happened.