My Letter “K” Pick for the A to Z Book Challenge was KEYSTONE by Dannika Dark. I’m not a huge Urban Fantasy reader, but I do believe Dannika Dark has made a convert out of me with this book – and joy of joys – it’s book one of a series so I can keep on enjoying these characters and the rich, multi-faceted world of vampires, mages, and shifters.

Our story follows Raven Black, an half-vampire, half-mage crossbreed (a one-of-a-kind combination) who has become a one-woman vigilante intent on hunting “Breeds” who kill defenseless humans. This garners the attention of a group named Keystone – a collection of various “Breeds” with an array of skills and magical gifts who are also intent on saving humanity from otherworldly predators. She joins them on a trial basis and is immediately paired up with Christian, a sarcastic and gorgeous vampire and they are set to tackle a case together, which, of course, ends up being a lot bigger and more complicated than planned.

This story has compelling characters, a wonderful found family within Keystone, and the chemistry between Raven and Christian crackles and zings off the page as they try to keep things strictly professional between them. I loved the humor, the action, and the edge-of-your-seat suspense of this story and I cannot wait to sink into this world again as I follow the (thankfully) complete series. I’m going 4 1/2 stars only because Raven, for a very smart, very skilled Cross-breed, makes a few too many rookie mistakes. Other than that, I loved the hell out of this one.