Ryan Hostetter: 1 book

Hi! My name is Grotho, but you can call me "G." I'm new to my school, and I've made a buddy, but he keeps on disappearing! I mean, REALLY disappearing! And that day a banjo gets delivered by a person and I don't know who!? Then there's my computer...it's doing my work! Sounds great, right? But it's all bit too weird! Join me in solving the mysteries of OUTLET AIR...