Cancel the coronation!
That's what the prince of Varania will have to do if he can't find the royal badge of office -- a jeweled silver spider. No prince can be crowned without it. But the silver spider has been stolen!
Luckily for the prince, his friends The Three Investigators are on hand. They've had a lot of experience in finding lost items. But never before have they tried to outwit dangerous political enemies -- enmies who want to do away with the prince!