Leo Graf was an effective engineer ...Safety Regs weren't just the rule book he swore by; he'd helped write them. All that changed on his assignment to the Cay Habitat. Leo was profoundly uneasy with the corporation exploitation of his bright new students - till that exploitation turned to something much worse. He hadn't anticipated a situation where the right thing to do was neither safe, nor in the rules...Leo Graf adopted 1000 quaddies - now all he had to do was teach them to be free.