Out of Print: Return to Deathwater (Narnia Solo Games #1) by Curtis Norris
I stumbled upon this book while I was looking at various editions of The Chronicles of Narnia. This is basically a Choose Your Own Adventure-type thing, but it takes place in the world of Narnia. There were actually five of these released once upon a time (you can see a box set featuring four of the titles here if you’re curious), but I only own this one, which I got for a quarter. I might try to pick up the rest of them at some point, if I can find them for a cheap enough price.