History Literature / DARLAH

* ApocalypticLog: [[spoiler:Mia's last note in the epilogue.]]

* {{Doppelganger}}
** EvilTwin: [[spoiler:Everyone who travels to the moon will encounter a doppelganger hell-bent on killing the original and using them to create more doppelgangers.]]

* IdiotBall: Handily avoided by most of the characters, until it makes an astonishing appearance [[spoiler:when the lunar module pilot decides to allow entry to someone claiming to be her comrade even after Mia and Midori can clearly see that said person ''isn't wearing a spacesuit on the exposed surface of the moon''. The pilot gets nabbed and killed pretty much instantly, and her actions are arguably what allowed the doppelgangers to kill the girls.]]
* {{Jerkass}}: Mia can be this at times, especially in the beginning when she yells at one of her teachers to the point of bringing the woman to tears.

* JapaneseHonorifics: Used in Midori's pre-trip chapters [[JustifiedTrope since she lives in Japan]], significantly when someone addresses her with -san rather than -chan for the first time to signify that she will no longer be an inexperienced child after traveling to the Moon.

* ArcWords / ArcNumber: The sequence 6EQUJ5, also known as the famous [[https://en.wikipedia.org/wiki/Wow!_signal "Wow!" signal]], appears repeatedly throughout the book. [[spoiler:It's a hint that there's something waiting for the protagonists up on the Moon.]]

* HumanoidAbomination

* InfantImmortality: Averted. A few major characters who die are teenagers or younger [[spoiler:including Mia's little brother at the end.]]

* KillAndReplaces: What [[spoiler:the doppelgangers]] pull on their victims, with a side of YouWillBeAssimilated.

* EvilTwin: [[spoiler:Everyone who travels to the moon will encounter a doppelganger hell-bent on killing the original and using them to create more doppelgangers.]]

NeedsWikiMagicLove.

* CruelTwistEnding: Everyone on the lunar mission but Mia has died, but she makes it back to Earth safely and is reunited with her family. [[spoiler:Only it's not the real Mia but her doppelganger, and she's about to go on an AxeCrazy rampage in one of the most populated cities in the world.]]

* MenAreTheExpendibleGender: Male characters have a much lower life expectancy in this cast than women. [[spoiler:Including Antoine, one of the protagonists.]]
* NothingIsScarier: We never find out exactly what the things on the Moon are, just that they aren't human, and we never find out ''why'' they're so hostile to human. The closest we get is speculation by one character that the Moon is something akin to a physical hell, which... requires some explanation in and of itself that is never given.

* CruelAndUnusualDeath: Lots of people are left to suffocate or die of exposure on the Moon's surface.

''DARLAH'' (released in English as ''172 Hours on the Moon'') is a 2008 sci-fi/horror novel by Norwegian author John Harstad. [[TwentyMinutesIntoTheFuture In 2019]], [=NASA=] needs to jumpstart a renewed interest in space travel in order to bolster funding, so they hold a worldwide contest for teenagers between the ages of 14 and 18. The prize: three lucky winners will get to spend one week on a lunar base alongside the team of astronauts picked for the mission. The novel follows the winners, Mia, Midori, and Antoine, as they slowly begin to realize that something isn't quite right with this trip, and that there might be something waiting for them on the Moon that nobody was ever supposed to know about.

* TokenRomance

* ArcWords / ArcNumber: The sequence 6EQUJ5, also known as the famous [https://en.wikipedia.org/wiki/Wow!_signal "Wow!" signal], appears repeatedly throughout the book. [[spoiler:It's a hint that there's something waiting for the protagonists up on the Moon.]]