In Last Specter, Raymond played a very minor role in the first and final cutscenes. He is seen driving the carriage taking Descole out of Misthallery, and has a line at the beginning agreeing with Descole that it is time for the next 'chapter' to be written.
After the events of Miracle Mask, Raymond can be seen with Descole, looking at the Nautilus Chamber of Akbadain just before they are attacked by Bronev. He askes whether they should "Go quietly", but is ordered not to by Descole. When Descole is pinned to the ground, Raymond throws a smoke bomb, blinding the Targent guards, and rescues Descole.
Raymond works for Desmond Sycamore in this game. He flies the Bostonius to Froenborg at the beginning of the game. Following this event, as Professor Layton, his two assistants, Luke Triton and Emmy Altava, and Sycamore travelled around the world to solve the mysteries of the Azran Civilization, Raymond helped them by flying the Bostonius.
After the two professors, Emmy and Luke learn from Aurora that they have to find the five aura stones, they fly back to London, and later on, Raymond is charged to take care of Keats, in the Bostonius.
At the end of the game, after Layton and co recover the five eggs (the last one being held by Bronev at The Nest), it is revealed that Desmond Sycamore is, in fact, Descole. He flees of, and while Layton tries to prevent him going back to the Bostonius, Raymond use a small plane to save his master and lead him to Froenborg. After this moment, Raymond can't be found anywhere until the end of the game.
Following the supposed "death" of Descole, in the Azran Sanctuary, when the Azran ruins had collapsed, Raymond, in the Bostonius again, had rescued his master and said that he would always serve him, as Descole decided to embark upon a new journey.
After the game ending, if the player decide to continue playing on the same file (to find the last puzzles), he has the opportunity to go anywhere he wants using the Bostonius, conducted by Raymond again. However, theses events which occur after the credits may not be canons, as they go against the plot (Descole use Sycamore's apparence, and Emmy once again follow the group, as well as Aurora, despite the fact that they are actually found in the last room of the Azran Sanctuary).