Rashak motions for the others to halt and be silent. He stands in front of the illusory wall and listens for a couple minutes, his ears adjusting to complete silence.
He motions for the others to wait, and slips past the illusion. Once past, he pauses again, scanning the tunnel carefully with his eyes. Sticking his arm back through the wall, he motions for the others to follow before moving cautiously down the new tunnel.
Hide +13, Move Silently +13, Listen +15, Spot +15
Taking 20 to listen before the wall, if possible.
Taking 20 to spot just past the wall, if possible.