Gabrielle Lau was a fisherwoman who saved Casey Jones from the ocean and pulled him aboard her boat, the Lobster Princess. She tells him the story of the Malacostra, a race of lobster people from the planet Neptune, who were led by a giant member of their species known as Big Snapper. Big Snapper had realized that Neptune was becoming uninhabitable to his people, so he journeyed to find a new home, which ended up being Earth. When his subjects fled years later, they found that Big Snapper had mated with local lobsters and was ruling his own kingdom. Cursing his former subjects, he forced them to become land-dwelling blue humanoids. This curse could only be undone by finding the "Royal Roe" - the last lobster on earth that carries Big Snapper's bloodline.