Nothing further is known with certainty concerning him or his companion. In Murzuk Hornemann had collected a great deal of trustworthy information concerning the peoples and countries of the western Sahara and central Sudan, and when he left Tripoli it was his intention to go directly to the Hausa country, which region he was the first European definitely to locate. "If I do not perish in my undertaking", he wrote in his journal, "I hope in five years I shall be able to make the Society better acquainted with the people of whom I have given this short description."