WILL THE HOUSE OF DANGER BE YOUR BIGGEST CASE EVER? OR WILL IT BE YOUR LAST? You are an accomplished young detective with several tough cases under your belt. Then comes a case that is as difficult as it is frightening. An anonymous caller begs for help. But before you can find out more, the line goes dead... " The phone rings again, and this time you are ready. "Hello," you say. "Help, I need your hel-l-l-lp...." "Who are you?" you ask. "What is your name?" "I'm scared," the voice says. "They're after me..." Click. The phone goes dead again. In the few seconds that have passed, your telephone-tracing device has already found the number of the other phone as well as the name and address of its owner: 555-7259, HENRY MARSDEN, 1100 HEDGE BROOK If you decide you should go immediately to 1100 Hedge Brook, turn to page 4. If you decide to give your friends Ricardo and Lisa a chance to call back, turn to page 14.