Based on a reallife aquatic escape. Out of this tank, I must be free. I must explore the open sea Inky the octopus is bored with aquarium life and wants to escape to the ocean But just how can an octopus in a tank get to the open seas? Find out in Inky the Octopus, the only tale of the mischievous octopus to be officially endorsed by the National Aquarium of New Zealand.