A dying teenager makes a pact with friend that when the first of them dies, the others will put a small digital camera attached to the internet inside the coffin. “When one of the teenagers dies, the survivors must decide whether to fulfill their high-tech pledge and if so, how. One stipulation moves the story into the gothic realm of Edgar Allan Poe. The coffin is to contain a heating element that will speed or reduce the body’s rate of decomposition. The temperature will then be controlled by online visitors, who can adjust an interactive thermostat on the tell-tale Web site.”