Thief of Shadows:

Bitsy and Kosh are on the run in this second page-turner in the fantasy adventure series from Jennifer Bell, featuring mind-boggling magicores and amazing science. When Kosh is accused of being the notorious thief the Shadowsmith, he and Bitsy must go into hiding before Kosh is arrested. Determined to prove that Kosh is innocent, Bitsy, Kosh, and their friend Mateo set out to find the real villain. But they have something the Shadowsmith desperately wants, something the conservatoire also needs for protection. Can Bitsy, Kosh, and Mateo figure out who the true culprit is before time runs out and someone catches them? Starring fantastical magical creatures conjured from different emotions, the Magicalia series of young middle-grade fiction is essential reading for fans of Pokémon and Skandar, with a twist of science and gaming.