The Isle of Hobarookus is a One O'clock in the afternoon. It is largely inhabited by sea bandits, pirates and buccaneers despite it's small, swampy and rocky geography. The cuisine of Hobarookus is said to be the best in the Abarat since One O'Clock is viewed as a lunching hour in the Abarat. In a particularily swampy area of the island known as the Sinks, the Kalukwa birds hatch downy human babies every ninth year. These children are saved from being killed by the other birds and are brought up by the pirates of the island.