I just put Birthdays Suck up on my web site. This is a free short story, part of the Sentinels series, set back in the early nineties when Paul was a teenager. It's Paul's birthday, and he's not at all happy about it, because he's sure his life is pretty much over.
Note that this story has a MAJOR spoiler for A Hidden Magic. If you haven't read that, and plan to, you'll want to read that first, then go read "Birthdays Suck" afterward.