Full disclosure: I won a free Kindle copy of this book in a Goodreads giveaway. There are some fun ideas here. Jacob Grenk, a young teenage boy has his consciousness transferred to the Tooniverse, a strange realm where, essentially, cartoons are reality. At first he has no memory of who he is or how he got there. He regains some of his memories upon battling a being made entirely of shadows. The rest of the book deals with his pursuit of Shadowy Figure and the areas and beings he encounters along the way.The book reads well enough, though there's a sense that Jacob is journeying more so that the author can show us the various areas of the Tooniverse than anything else. In some ways it feels more like a video game--say, Kingdom Hearts, for instance--than a book. Jacob goes on a quest, collects companions and items, all building to a big boss fight at the end …My favorite moments were the parts parodying some of my favorite types of cartoons: The Adventure Realm (speaking of video games …), Supercity (comic book superheroes), and Animetown (duh. Anime.) Rodden does a fine job of poking fun at the various tropes of each.The ending sets up for a sequel, which may be part of the reason I’m so lukewarm on this book. I just don't know that I’m that interested in seeing more of the Tooniverse. Once was fun, but felt more like an extended joke than a novel. A second excursion, I think, would be tiresome.