Daniel has obssessive-compulsive disorder, or OCD, which makes it difficult for him to function normally. He feels nervous, for example, if he hasn't flipped his light switch a certain number of times, and he prefers to have the water cups for the football team aligned just so. He gets a mystery note "from a fellow star-child" asking for help, and being drawn into someone else's crisis might help him to face his own.
I'm so glad to find a book about a character with OCD, and the writing clearly explains the feeling for readers who are not afflicted with it. Unfortunately, I felt like Daniel's OCD was the most interesting thing about him - the fact that he has it should not be the story. Sara is a compelling character with an interesting problem, but her mystery does not tie very believably to Daniel; it's a little hard to believe that Daniel would be enough of a risk-taker to go on adventures with her. It's also a little difficult to believe that Daniel and his family could be so unaware of his condition and go so long before they address it. This book and its protagonist will likely interest most readers.
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