Anyway, the book! It's a young adult slightly-science fiction thriller called Tunnel Vision, by debut author Susan Adrian. The bad news is that it's not out until next year, so I'll probably re-up this post to remind you then, but since I was so effusive on Twitter I figured I might as well post now. Here's the description from Goodreads, where you should add it to your TBR shelf immediately:
A teenage boy who has a power he calls tunneling—he can decipher where anyone in the world is (and what they’re doing) by holding something they own—is brought to the attention of the U.S. government.This book grabbed me from page one - and then it just kept getting better and better. At several points I was thinking I had the book figured out, knew more or less where it was going - and then Adrian pulled the rug out from under the reader in the best possible ways, with twists and surprises that feel utterly inevitable in retrospect, rather than just being shocking for the sake of it. Sometimes after you read a lot of books in a genre, you start feeling like you have a general sense of where things are going, and the way this book upended those expectations was so refreshing. And even aside from the main thriller plot, Tunnel Vision has loads of heart and humor, a bit of romance - the hero mentally compares his love interest to Veronica Mars, so you know he's got good taste - and some fascinating family dynamics, especially a sibling relationship that was my favorite part of the book.
(Disclaimer: I know Susan, but I would not lie to you about something as important as a book recommendation.)