Blood Cute (en Inglés) - Rachel A Stine

When eight children go missing in the small town of Bayhorn, the only ones who seem to care are a vampire (Ori), a zombie (Zelda), and a hume (Juniper). The three band together to crack the case and track down their missing loved ones. 

Through coffee runs, lemon squares, and stakeouts, the three manage to keep their spirits high and their caffeine intake higher as the investigation leads them to an internet predator and a local woman who might be a child-napping witch. 

And the more time they spend together, the stronger their feelings for one another become. But can their newfound relationship survive the investigation as secrets are revealed?