It shone as a pin-point of silver far away in the midnight-blackness of the cave. It shone as a tiny island of life in a sea of death. It shone as a symbol of His mercy. Martin stood swaying, staring wide-eyed at that wonderful light and letting its image sink deep into his vision. His eyes lidded as consciousness faded for an instant, then opened. "We've almost made it," he gasped. "We've almost made it, Sandy, you and me and the pup!" His hand passed tenderly over the puppy, a soft, hairy ball