Tortoise and the Magic Igbako

Back in the days when Tortoise could talk and the animals ruled the forest, famines were frequent and those animals who could not survive the drought would wither and die. There was one such period when the tortoise had become lean.
He had survived as long as he could on his wit but he soon began to suffer like all the other animals as every available source of food disappeared.
The water goddess gave Tortoise a magic Igbako and warned him not to reveal the magic of the Igbako to anyone outside his immediate family.
But what did the tortoise do?