Professor Layton and the Unwound Future/Chapter 13: The Stronghold of Madness

As Clive sets his plan for revenge in motion, Layton rushes to find a way to save Flora and prevent London's impending destruction!

Puzzles here and there
Talk to Celeste and Layton will announce his plan to infiltrate the fortress and save Flora. Talk to Don Paolo, who says that he modified the "future" version of the Laytonmobile to help you reach the fortress. Go up the stairs to find it parked on the road. You could enter it to trigger the endgame, but there are still some puzzles you can solve.

Return to the black market and talk to Segal for Puzzle 133. Now enter Chinatown and keep moving north until you reach the Warehouse Area. Talk to Marzano for Puzzle 136. Talk to Marzano again for Puzzle 140. Go back to Flatstone Street and make your way to the casino. Go to the casino floor and talk to Mark for Puzzle 142, which will net you the  Cash Roundup course.

Into the fortress
Move back to the Riverside Hill and check the Laytonmobile for Puzzle 118. Having fully fixes the car, Layton and Luke heads out to infiltrate the moving fortress. After a cutscene, you will be on the fortress itself. Check the door for Puzzle 119. Move to the next area and check the metal door for Puzzles 120. Enter the elevator, then select Ventilation.

Check the door twice to enter it, where you'll find Flora imprisoned. Check her glass cage for Puzzle 121. Having freed Flora, she will join Layton and Luke to stop Clive. As you attempt to exit the room, someone will come. Layton and the group will hide behind some machinery, overhearing Clive's henchmen saying he is in the surveillance room.

Return to the elevator to trigger Puzzle 122. Check the map and select Surveillance. Talk to Fisheye for Puzzle 123, which will net you the  maid sticker. Move upstairs and talk to Clive for Puzzle 124. Clive will leave and begin the machine's destruction of London. Celeste will appear to help you stop Clive. She says that you can stop the fortress if you find its generator. Check the monitors in the room for Puzzle 125. Exit the room, after which Celeste will say that she arrived through Don Paolo's flying machine, which you can find by taking the right door to the landing deck. You can return to the ground any time you want by tapping the flying machine.

Return to the elevator and check the green screen to enter the generator room's coordinates. Check the map and select Generator to move there. Check the generator itself for Puzzle 126. The generator will open up to reveal Bill Hawks inside, and Clive warns you that removing him from the pod will cause the fortress to explode.

Celeste will give you her sister's pocket watch, which cannot be winded up more than 10 minutes. She proposes using it to imitate Bill Hawks' heartbeat as they remove him from the seat. You'll need to solve Puzzles 127 to do so.

Having successfully swapped the watch for the prime minister, you must hurry and stop Clive before the ten minutes runs out!