Wundersmith: The Calling of Morrigan Crow

Wundersmith: The Calling of Morrigan Crow is a 2018 novel written by Jessica Townsend.

Tropes used in Wundersmith: The Calling of Morrigan Crow include:

Auction of Evil: In the Ghastly Market, knacks are auctioned off to the highest bidder and stripped away from their original owner.
Black Market: The Ghastly Market, which Morrigan stumbles into when she goes too far down a Tricksy Lane. Many illegal substances like body parts are avaliable for purchase. A major plot point is about the authorities, including Jupiter North trying to shut down the market.
Brought Down to Normal: Alfie, whose knack of breathing underwater is taken and sold at the Ghastly Market. Once this happens, he is never seen again in the Wunderous Society.
Gilligan Cut: A rare example where it is used in literature. Jupiter North repeatedly says that Morrigan's birthday celebration will not be glamourous or large, instead it will just be humble. Unfortunately, The Hotel Deucalieon employs Frank, one of the most talented party members around.

Jupiter North: "Frank knows who the boss is, Mog. He knows who signs his pay cheque. If I tell him to go low-key, he's going to go --" Jupiter cut off, his mouth open... The Deucalion was draped with millions of flamingo-pink fairy lights that lit up the whole night and could probably, Morrigan thought, be seen from outer space.

Time Master: Professor Onstald's ability, allowing him to slow down time, choosing to exempt some people from this effect. This allows him to quickly rush away from an angry Morrigan, and, in the climax allows Morrigan and her friends to get away from the Ghastly Market.
Superpower Meltdown: Morrigan does this when she or her friends are insulted, resulting in her breathing fire and losing control of her abilities as a Wundersmith. At one instance, she gets temporarily expelled from the Wunsoc to protect the other pupils, and Professor Onstald travels to her residence in the Hotel Deucalieon to give his lessons.