Sgt. Kirk #13 was published by Ivaldi Editore on July 1, 1968, as part of a series that began in 1967. Hugo Pratt and Milton Caniff write, and art comes from Alberto Ongaro. It features Corto Maltese, Captain Rasputin, Sgt. Kirk, Cain Groovesnore and Pandora Groovesnore, among 9 characters catalogued on VerseDB.