ISBN-13: 9781497351738 / Angielski / Miękka / 2014 / 166 str.
Camp Wigwam is in danger of closing The owner loves her summer camp, but there have been mysterious ghostly appearances at the camp. Ms. Hardeker, fearing for the children's safety, is about to sell Camp Wigwam so that it can be turned into a ski resort Jason and his friends must solve the mystery of the unearthly appearance of the ghostly Indian maiden so they can save their beloved Camp Wigwam.