An adolescent girl named Lem searches the deep dark woods for her missing dog, entangling her destiny with a chivalrous mushroom faerie named Gowlitrot on a mystical quest to protect the biome from catastrophic ruin.

As their friendship develops, Gowlitrot pledges to aid Lem in a quest to discover the fate of her missing dog, but as the search progresses, they uncover perilous betrayals that challenge the foundation of each of their worlds- both inner and outer. The natural world may never appear the same again.