Peck's Den

In Peck's Den, there is a secret area that is shown in the preview.

Directions
From the spawn point, go down the nearest flight of stairs. Go through the room, down the other stairs (not on the drum trampolines) and to the room with the shelves filled with art supplies. Walk through the rainbow water and the floor with the paint splatters. Go down to the room with crystal statues of the alphas. Walk all the way to the end of the room filled with crystals, locate the stepping stones and walk through them.