Rizal left Europe for Hong Kong in 1891, where he lived with his family and worked as an ophthalmic surgeon. While in Hong Kong, he continued writing works advocating for reforms in the Philippines and conceived of a project to establish a Filipino colony in Borneo. Despite warnings that it was dangerous to return to Manila, Rizal decided to do so in 1892 in order to discuss his colony project with the governor and establish the Liga Filipina secret society. Before departing, he wrote letters to be opened after his death predicting his fate.