REVIEW by @Fidget78: The Isis Collar (Blood Singer Series #4) by Cat Adams (@cathyclamp)

  Celia Graves was once an ordinary human, but those days are long gone. Now she strives to maintain her sanity and her soul while juggling both vampire abilities and the powers of a Siren. Warned of a magical “bomb” at a local elementary school, Celia forces an evacuation. Oddly, the explosion seems to have …