The Book of Good Times

The Book of Good Times is a series of mysterious books appearing just for the right person at the right time. They are described as clothbound or leather-bound, brown, having a hard cover with the title pressed in gold leaf and simple serif font. The books aren't big, having an estimated 100-200 pages, although the actual content length varies. There is no front matter and the text starts at the very first page.

But of course the most interesting thing about the books is that they seem to predict the future. The books claim their magic will stop working if anyone but the reader knows about them.

It is later revealed the books are written by Carl, and the predictions are a mix of predictive models and hacking for insider trading. Carl uses the books to communicate without the possibility of detection.

A few dozen people have received The Book of Good Times. Among them are:
 * Andy
 * Maya
 * Jessica
 * Mitty
 * Robin Vree
 * Bex
 * Two pilots
 * April
 * Jason
 * Miranda
 * Maya's parents
 * April's parents
 * Saanvi Laghari
 * Dr. Lundgren