Truppe, the Ceaseless Dark (常闇のトルッペ, Tokoyami no Toruppe) is a Tyrant in Xenoblade Chronicles X. It is a member of the Petramand family. It can be found at night at level 53 at Old Ceremonial Hollow in Cauldros, at the end of the last corridor to the southwest. It must be defeated for Squad Mission No.15.