The Medicine Cat's Den is beside a small, uniquely-shaped rock. The willow tree that hangs over has large roots, making a small ramp to access the tree branches. The actual Medicine Cat and Apprentice sleep on a tree limb with a slight dent into the tree to offer shelter in icy cold nights. Under the rock is a little cavern, with nooks in the walls. The herbs are stored here. Injured and ill cats sleep in little hollows, accessed by a little tunnel from the herb storage area. They're big enough to have five full-grown cats inside comfortably.