Mystery Inc. is going on a road trip, but their vacation takes an unexpected turn--a UFO has landed nearby! When they go to investigate, they find little gray aliens coming out of the ship and the gang can't believe their eyes. Is this really a first encounter, or is an Earthling behind this crash landing? Your choices will help discover the truth in this intergalactic You Choose mystery. Multiple endings, a glossary, and Scooby-Doo jokes make this a fun and educational read.