Betrayal

Emma Vaile is the most powerful ghostkeeper in centuries. Which is great
when she's battling the wraith-master Neos, but terrible when she's
flirting with fellow ghostkeeper (and soul mate) Bennett. When
ghostkeepers fall in love, the weaker one loses all power, and that's
not something Bennett can handle. Heartbroken and alone, Emma tries to
lose herself in school with fellow ghostkeeper, Natalie. When a new team
of ghostkeepers arrive-one a snarky teen
boy, the other a British
scholar-Emma...