Twelve-year-old Jake's brain works like a computer - everything is programmed, it runs on a strict routine, and there's no limit to the amount of information it can learn. When Jake gets into something, he gets way into it, and this year, it's medieval times. But there's a glitch in the code, and Jake ends up IN a medieval world where all the superstitions and stories he's learned are real. That's not the worst of it. The clothes are...