Party of One is a series of... well, it appears one book, where you go on a solo adventure. If you've ever read a Choose Your Own Adventure style book, this is basically what it is.
Your character is a fledgling wizard, Leda, who embarks on an adventure with her mentor. At certain points, you have the chance to take differing actions, such as "go east", "go west", "attack the darkness", and so on and so forth. Depending on what you do, your first time through the book will be wildly different than the next read through.
What sets this book apart from all the CYOA books I read as a child, though, is how they encorporate the 3rd Edition rules into the book. Say, for example, you're asked to make a spot check; if your check is above the DC, you go to a different page than if you roll below the DC. Though Leda's character sheet is in the back of the book, they include the modifier in the text portion for ease of use. Also, when a battle occurs, you have the option of either doing the battle yourself, where you then go to one of the appendices that has all the information that you need, or you can just read along without participating yourself.
It's a decent adventure, and pretty entertaining. Well worth five dollars, in any case.
