The sixth game in the Professor Layton series, third in the prequel series. It is also, according to Word of God, the final game in the series to feature Layton himself; though not the last game overall.Layton receives a letter from professor Desmond Sycamore, who requests his help in solving a mystery he has stumbled upon: the identity of a young girl who was frozen in ice for millions of years, but is inexplicably still alive. The girl is the key to solving the mysteries of the ancient Azran civilization, and it becomes clear that Layton and his friends aren't the only ones who are interested in doing so...A first to the series, instead of remaining in a single locale or two, players are tasked to travel around the world to visit other locations connected to the main plot, all of them holding their fair share of puzzles and mysteries to solve the biggest mystery of the Azran Legacy.
Aerial Canyon Chase: We get one of these early on in the game. Use your puzzle solving skills to shoot down unmanned drones and missiles!
Arc Welding: Sycamore goes over the fact that the Golden Garden, Ambrosia, and the Nautilus Chamber, respectively uncovered in Last Specter, Eternal Diva and Miracle Mask, are all examples of Azran civilization. Soon after, another is revealed to be under Lake Kodh.
The Atoner: Sage Sheppard sees helping young people find love as his greatest joy and his means of atoning for his complicity with Hoogland's human sacrifices to the Dragonlord.
Batman Gambit: Descole/Sycamore basically uses this in allowing Layton and crew to travel with him. He knew that Layton would want to solve the puzzle, and used that against him in order to get the key — to try and keep said key out of Targent's hands. Unfortunately, it doesn't quite work out, as Targent had a mole in the party.
Chelmey and his newly-married wife are seen at the aerodrome, going on their honeymoon together. Awwwww.
Interestingly enough, Chelmey cannot be interacted with, and is always looking away or distracted with something, in keeping with Layton meeting him for the first time in "The Curious Village".
In Curious Village, one of Layton's responses to a wrong answer is, "frankly, I'm ashamed". Here, that particular response has returned (albeit, in a harsher tone of voice. Ouch to anyone who manages to invoke that response.)
Also the ending, where Luke and Layton are shown driving towards the Curious Village.
One of the sidequests is a collection game where the player finds stated objects for points. You can trade in the points for prizes. Three of the prizes are hotel room tickets — Curious, Surreal, and Future. The Curious Room shows you a locale that looks vaguely like St. Mystere, and Stachenscarfen speaks to you! The original puzzle music plays as well!
The Surreal Suite shows Folsense, and the Future Suite — as its name suggests — is Future London.
In one of the final scenes of the game As Emmy is about to leave she bursts into tears and hugs Layton, just like Luke will eventually do at the end of the following trilogy.
Chekhov's Gun: At the Hoogland chapel, a magnet takes away Julien's shovel. At the entrance to the Azran Sanctuary, another one takes away a Targent Mook's gun.
The dormis soporis mushrooms from Mosinnia. Sycamore uses them to take out a guard.
Close-Knit Community: Most of the places visited by Layton and crew on their adventure. San Grio in particular is especially so, given that one of the customs is passing around the "original popono" to other people, to wish them good fortune.
Collapsing Lair: The Azran Sanctuary becomes this once it has fulfilled its purpose.
Cosmetic Award: The trophies you get for completing the daily puzzles, which are significant objects and places from throughout the series.
Crazy-Prepared: Sycamore especially during the part in Targent's HQ. Sleeping smoke bombs!
Cute Kitten: Keats reappears in this game. Raymond and Keats are shown to have struck up an adorable friendship in one of the episodes found during your adventures.
Darker and Edgier: Feels this way in comparison to the previous games. It helps that there is a lot more at stake this time.
Dramatic Unmask: This one's a staple of the series. In this case, the reveal that Sycamore is Descole.
Driven to Suicide: Played straight then averted as Romilda about to be sacrificed, when given a chance to escape, she refuses to run away, nor die on their terms. She was planning on killing herself to spite the townspeople on how stupid the custom sacrifices were, until the heroes discover a ThirdOption
Empty Piles of Clothing: Invoked by one of the mysteries, which involves young girls from the town of Hoogland being sacrificed to calm down a wind deity. Upon being sacrificed, the girls are said to transform into a breeze, leaving all their clothing behind.
Heel-Face Turn: Double subverted by Emmy and played straight by Bronev.
Emmy was never evil, but she did work for Targent all along, and betrayed Layton and Luke. However, she only did so to try and bring him out of his obsession for the Azran legacy, helped stop the Azran golems, and never did anything irredeemably bad, leading Layton and Luke to forgive her (Though she does leave Layton's side, partially out of guilt, Layton makes it clear that she can stay with him as an assistant if she wants).
After realizing how far he went to uncover the Azrans' secrets, how much it cost him (Namely his wife and sons), how meaningless his quest turned out to be and the danger he unleashed upon the world by releasing the Azran golems, Bronev is devastated. Helped by a speech from Layton, he helps stop the golems by sacrificing his life, though he is revived. Though Layton still considers the Layton couple his parents, he isn't against the idea of meeting Bronev again as an archeologist, maybe even a friend, after he has served his prison sentence.
Point of No Return: Bronev's office at the top of Targent's HQ. The game warns you that you won't be able to travel wherever you want after you pass this point, though. It's eventually subverted when you beat the game, after which you can exit the last room of the Azran sanctuary, allowing you to travel throughout the world as if you hadn't beaten chapter 5 (Complete with Sycamore, Emmy and Aurora in your party). You can go back to the last room to finish the main quest again, of course.
Courtesy of Emmy, Aurora gets some of this, complete with a cutscene of them shopping for clothes, and then Emmy prompting Layton and Luke for their opinions. Crosses over with The Makeoveras it's a means of helping Aurora to create a disguise.
Luke gets a little of this in the end credits as well, courtesy of his parents. He gets his outfit from Curious Village, to be precise.
Robot War: This was what brought down the Azran civilization- they built golems that were as intelligent as people, but only treated them as tools, causing them to rebel.
Series Finale: Double subverted. This isn't the final game in the series, but it is Layton's final game.
Sequel Hook: Subverted, it seems heavily suggested with the "To be continued" at the end, with Layton and Luke heading off to the curious village that they will remake Curious Village and possibly the entire original trilogy. (For the fans who missed out the first time around)
Takes the Bullet: Descole, for Luke, when one of the laser-shooting statues reactivates.
That Man Is Dead: The spirit of the trope is invoked by Layton in the ending, who learns that his real name is Theodore Bronev. Layton says that Hershel Layton is the only name he needs.
That Reminds Me of a Song: Once again, some of the puzzles can come completely out of left field. For example, a woman in Hoogland gets angry with you and bluntly asks you to leave... after you complete a puzzle.
Town with a Dark Secret: Hoogland, of all places. Young girls are regularly "wed" to a wind deity to calm down the strong winds it can create. And by "wed", we mean sacrificed,
Trial-and-Error Gameplay: The dress-up puzzles. All of the people you need to help have certain requirements for their outfits, such as its attributes, colors and other things. If you meet all those requirements, however, the person may tell you that a certain piece of clothing isn't quite what they had in mind (albeit with a hint as to what they're thinking about), so you have to switch out the clothes until you get the right combination.
Wham Episode: Starting from the end of Chapter 5, the game throws whams at you relentlessly, but four of them are especially big: Emmy was working as a mole for Targent all along, Descole explains of his shared past with Layton, revealing that he is his brother, that Hershel was actually Descole's name and that Layton was adopted, and that their father is none other than Bronev.Holy crap.
Young Professor Layton: But Hershel, I want to stay with you!
What Happened to the Mouse?: At one point in chapter 4 Professor Sycamore casually mentions that he once had a daughter, but she died several years ago. Emmy, like everyone playing the game, is utterly shocked by this. It never gets mentioned again in the plot.
In one of the post-game episodes it's revealed that Sycamore's wife and daughter died together, and is implied that Targent was involved somehow, but this major piece of backstory is never touched on again.
What Measure Is a Non-Human?: The Azran civilization's downfall was a result of creating a race of golems, and forcing them to do manual labor despite them having emotions, resulting in them rising up and killing them. When they awaken and start to destroy humanity, Layton and company's only means of stopping them results in them falling to earth and breaking them; they show relatively little reaction, although they had no other means of stopping them.