Lina's Den is a location that appears in the Sonic Boom franchise. It is an underground den located near the lake with waterfalls and the residence of Lina the Wolf.
Lina's Den is an underground house incorporated into a small hill. The front entrance is a round door. Her front yard has various flora, sphere-shaped lamps that contains fireflies, and a huge rock to disguise her den.
The interior of the house is quite neat with gothic-styled furniture such as red velvet couches, coffee tables, chairs, diamond-textured mirrors, a chandelier, bookcases, and various magic objects such as wands, spell books, a crystal ball, salt, and potions that can be used when performing witchcraft, magic, and seances. In many ways, the house reflects in Lina's interests in goth and magic.
The house also has a kitchen, a bathroom, and a bedroom.