Sammy Keyes and the Skeleton man (libro en Inglés) - Wendelin Van Draanen

This Halloween is more than just tricks and treats--it's deadly serious.  It was supposed to be a simple ding-dong ditch. A dare to give them bragging rights. But as Sammy and her friends sneak up to the spookiest house in town, they get scared witless by a skeleton, and then witness something frightening enough to make even Sammy scream. Things have taken a scary turn at school, too, with horrible Heather spreading embarrassing rumors about Sammy. Sammy devises a plan to expose her, but it's going to take a deceptive disguise, some good friends, and a lot of guts to pull it off...   Praise for the Sammy Keyes series:   “If Kinsey Millhone ever hires a junior partner, Sammy Keyes will be the first candidate on the list. She’s feisty, fearless, and funny. A top-notch investigator!” —New York Times bestselling author Sue Grafton   “The sleuth delights from start to finish. Keep your binoculars trained on Sammy Keyes.” —Publishers Weekly   “The most winning junior detective ever in teen lit. (Take that, Nancy Drew!)” —Midwest Children’s Book Review