I'm not entirely sure as I haven't read it yet. But generally, it might involve a character or characters facing some sort of time - related challenges. Maybe they are running out of time to achieve a goal, or perhaps there are some time - travel elements that disrupt their normal lives.
Since I don't know this book specifically, in a story about being 'Out of Time', there could be a character who is very intelligent and uses their wits to deal with the time - related problems. There might also be a sidekick character who provides support and comic relief to the main character who is dealing with the time crisis.
I'm not sure specifically which 'Monique' this refers to. There could be many people named Monique. Without more context, it's difficult to tell the stories about her secret spa or details related to her as a wife.
I'm not sure specifically what stories are there as it's not a very common or widely known topic. It could be that the spa has some unique experiences that are related to Monique's wife, perhaps something like how she influenced the spa's design or certain special treatments they developed together.
Yes, there are some great ones. You can start by looking on fanfiction.net or Archive of Our Own. Just search for 'lydia martin x labyrinth' and you'll find a variety of stories with different themes and styles.
I really like the fanfic 'Martin's Hidden Past'. It reveals a lot of backstory about Martin that wasn't fully explored in the show. It's full of mystery and keeps you hooked from start to finish.