You do absolutely nothing. Press "Call Luke" and don't touch anything, just sit still for 15 seconds and the door opens.
No, Professor Layton does not die at the end of the 3rd game, The Lost Future. Look out for the Spectres Flute, game four which obviously includes Professor Layton and Luke Triton.
Press Call Luke and don't press ANYTHING for the 15 seconds.
You do nothing for the 15 seconds, as Luke says, there is nothing you can do to solve this puzzle p.
Luke Triton, The assistant to Professor Layton, he accompanies the Professor, solving all the puzzles and mysteries.
In Professor Layton, Luke is Professor Layton's apprentice/assistant. He goes with Layton everywhere. His father [Clark Triton] is collage friends with Layton so that's how they met. Also Luke is professor Layton's friend (professor layton says so in the lost future).
Professor Layton and Luke Triton are not related, Layton is a friend of Luke's father, Clark Triton and Mother Brenda Triton. Professor Layton liked Luke's attitude to mysteries so invited him to be his apprentice.
Luke is Professor Layton's Apprentice, he's very good at puzzle solving.
Luke Triton - Relationships. Mother - Brenda Triton Father - Clark Triton. Sibling's - Unknown? Home Town - Mist Harley. Hair Colour - Brunette. Luke has been in Professor Layton and the Curious Village Professor Layton and the Diabolical/Pandora's Box. Luke is also in: Professor Layton 3 and is due to make appearances in Professor Layton 4.
No
Maybe he wants a trip? Who cares? Its just an animated game, in case you didn't know its all fake... Luke travels with Professor Layton because he is Professor Layton's apprentice and wants to solve puzzles with him.
Please see the Related link below for a walkthrough of how Luke became Professor Layton's apprentice.
No, they're not even related. To see why watch videos from Professor Layton and the Specter's Flute.