For some reason, Will still thinks he's going crazy. Seeing his Mom soulless and possessed, no big deal. Watching Dave fight off aliens from the wing of a plane, just another Tuesday. But Dave telling Will that he's his guardian angel sends him into a spiral where he doubts his sanity.
Will pushes that aside and meets up with Nick and Ajay to head to the tunnel.
Ajay brings his modified pager to record their GPS coordinates so that he may map the tunnel.
When they get to the secret room, there's nothing inside it.
It's just the auxiliary locker room.
And these nitwits believe it's just another locker room. Buried half a mile under the ground. Seriously, if the sign said "No Weird Tunnels to Another Dimension Here," they'd probably turn around and go home.
After a few minutes, Will realizes how weird it is to have a secret underground locker room.
Could something possibly be in one of the lockers?
As they search the lockers, Will confesses that he saw men inside the room open a portal to another dimension and pull a lamia through, and only Will can see it with his special sunglasses.
And no one questions him.
Suddenly, Ajay finds a pressure plate that opens a secret compartment.
Inside the compartment is a steamer trunk filled with hats and disguises. They must have stumbled across the supply closet for every Scooby-Doo villain ever.
There is also a list of names labeled "The Peers" (25.193), because every secret society needs to call roll for each meeting.
None of the names look familiar, but Ajay memorizes it with his photographic memory.
The boys put everything back where they find it and decide to leave.
But a creepy figure with a sword is waiting for them in the hallway.
The boys need an alternate exit. There is conveniently a tunnel hidden behind a locker.