Obsidian, Onyx, and Opal, by Jennifer Armentrout
After writing about the upcoming film adaptation of Jennifer Armentrout's sexy-aliens-in-peril Lux series, I requested the first three installments—Obsidian, Onyx, and Opal—from my local library. The books' mega-cheesy cover art was off-putting, but I was hoping the story would deliver some enjoyably soapy Roswell-style goodness... but those hopes were doomed. . . .