At the heart of the decaying world is Fourspires Castle, home to arcanists from across the four magical disciplines: bone, blood, botany and stone.

When the king is assassinated, chaos erupts. To seize the crown, arcanists and their human familiars are dragged into the Slaughter – a deadly competition, where survival means killing and death is the only escape.

Amidst the bloodshed, four rival familiars must work together … Taro, a bone witch still obsessed with her ex. Nixie, a botanical familiar with a ghost living in her bedroom. Elliot, a cursed and vengeful blood familiar and Alix, banished from the stone arcania tower and shrouded in secrets.

Together, the four Wyrdos are not just fighting to survive, but to lift the curse upon their world. There must be more to the sky than a dome of teeth and spittle; there must be something beyond the decay of Fourspires …