In April 1929 J.M. Barrie gave the copyright to his Peter Pan works to the Great Ormond Street Hospital, with the request that the income from this source not be disclosed. This gave the institution control of the rights to these works, and entitled it to royalties from any performance or publication of the play and derivative works. Innumerable performances of the play and its various adaptations have been staged, several theatrical and television adaptations have also been produced, and numerous editions of the novel have been published, all under licence from the hospital. The hospital’s trustees further commissioned a sequel novel, Peter Pan in Scarlet, written by Geraldine McCaughrean and published in 2006.