Who among us has not thought about what we would tell our younger self if we could go back in time? If we’re honest, we acknowledge that our younger self, after getting over disbelief and the resulting freak out, would not listen to a damned thing we had to say. That’s the challenge for Cal Leandros in Nevermore, the tenth installment in Rob Thurman’s urban fantasy series, and it goes about as well as you might expect.