Leighton is barely surviving her difficult home life when five supernaturals — her childhood best friend, a surly wolf shifter, a kind-hearted caster, a campus king, and a mysterious demon — show up claiming she belongs with them at Castle Academy. The pull she feels toward each of them is undeniable, and as she settles into the Academy, she discovers she carries a power none of them expected. Together they are stronger, but something ancient and evil has set its sights on all of them.

Leighton is a warm-hearted survivor who rushes headlong into danger to protect those she loves, sometimes frustrating readers with her impulsiveness. Her mates are fiercely protective, and their different supernatural natures — wolf, caster, demon, dragon — give each relationship a distinct flavor within the polyamorous bond.

Across three books, Leighton and her five mates — a wolf, a caster, a demon, and two dragons — face escalating threats from corrupt forces within the supernatural community. Their 'fated mates' bond deepens as their shared power grows, but betrayal from unexpected quarters tests everything. The trilogy concludes with the defeat of the evil army and the promise of happiness, while threads remain open for Cillian's spinoff series.