A heartfelt fantasy adventure from the writer of The Wild Cosmos, with luscious art by powerhouse Jo Mi-Gyeong, artist of Eve and The Dark Crystal. In a medieval fantasy world filled with powerful companion creatures known as keepers, one boy and his friends are on a quest to find his missing father. Tensions rise as the angsty teens run out of clues and face unexpected peril at every turn. A grieving tyrant has outlawed keepers from the land and sent his murderous soldiers to exterminate every one of the beasts they can find. Mac, Ava, and Ping will have their friendship tested as they struggle, tooth and claw, to save each other and as many keepers as they can.