Notes: Passport to Eternity was translated by Hilja Brinis as "Passaporto per l'eternità". The Watch-Towers, The Man on the 99th Floor, Thirteen to Centaurus, Track 12 and A Question of Re-Entry from the original collection are published in Urania #371. A mix-up in the Italian titles occurred between Thirteen to Centaurus - "Tredici verso Centauro" and Escapement - "Il tempo si guasta" Somebody to Play With was translated by Mario Galli as "Qualcuno con cui giocare" Department p. 104-112