Golden Sword of Dragonwalk (Twistaplot, No. 4)

It's a riveting fantasy, it's a choose-your-own adventure Twistaplot--it's a wild new work from a bestselling author. R.L. Stine leads his legion of fans to a new realm populated by dragons, sorcerers, valiant knights, and a kid who accidentally opens an attic door into their world and now must save it.