So there's this cameo by Alex Delaware that I think is remarkable because Alex Delaware is the star of Jonathan Kellerman's main series. This novel, however, is a standalone starring Grace Blades. The cool part about Delaware's cameo is, I had no idea it was a cameo, and the author didn't make me feel as if I needed to read other books to understand why this guy pops up. I only found out Delaware was a cameo because I'm enjoying this one so much that I've been looking up other Kellerman books.
Well played, Jonathan Kellerman. Well played.