Very good book. Isaiah Quintabe (IQ) is a fascinating character. Not quite a savant but definitely on the spectrum. After his brother is killed, IQ becomes a private detective. He uses his unique gifts to help people in his neighborhood when the LAPD can’t or won’t. The plot is tight, the characters leap off the page. If you can deal with the language and the real life grittiness of the plot, you will love this book.