The Siren and the Deep Blue Sea

***Four sisters have become queens, rulers of all that Aerthlan's two moons embrace. The last sister will forge her own path . . .* **
**Signs and Seals**
Raised on the magic-seeped Isle of Moon, Maeve is used to unusual powers--and the way they fuel the politics of her world. But when she discovers an ability to shape-shift at will, she knows who she wants to share it with first. Brody, the enigmatic, infuriating shifter-spy has always made time for Maeve. But it's been almost two months since she's seen him. And though no one else believes Brody is in danger, Maeve is more than ready to rescue him herself.