Lenny is a seventeen-year-old boy living all alone in the city, with no memories of where he came from. In his search to find out who he is, he creates his latest of brilliant but chaotic inventions: Experiment 42. It takes him to a world unlike anything he's ever seen before, filled with strange beasts and stranger people. While chasing his past, he finds something much more precious instead.

Experiment 42: Outcasts of Orovoron is the first book of Ace de Best (2000), who also created the popular YouTube series Experiment 42 (2014).