Adventure: A local has requested that you retrieve a relic from the Hall of the Lost Army and return it to her. She gives you a keystone to help you out.
Stand on the floor switch to activate the stairs.
Read the panel if you want to. Put the keystone in the slot.
Put the statue onto the floor switch to unlock the door.
Push the statue onto the floor switch. This activates a second to appear.
Stand on the floor switch.
Push one of the statues over the floor trap to deactivate it, and so you can get through.
Clear the rubble.
Stand on the floor switch to make a hole in the wall appear and a hidden door open.
Examine the hole to unlock the door.
Go through the hidden door to collect the treasures in the room.
Go through the door and explore the dive pool. Say yes to the tunnel question.
Collect the keystone from the chest in this room. Go back through the tunnel in the dive pool.
Put the keystone in the door.
Collect the treasure from the chests. Stand on the floor switch. Return the relic to the local.