In the fourth Isla of Adventure chapter book, Isla is excited about her first-ever sleepover! Isla is invited to Tora's for a sleepover! Snacks, movies, fancy pajamas, scary stories at night--Tora has it all planned out! But what the girls didn't anticipate is a strange fluttering sound in the attic...Could it be a ghost? With easy-to-read language and illustrations on almost every page, the Isla of Adventure chapter books are perfect for beginning readers.