Wishes, in the universe of the Daughter of Smoke & Bone series, are a type of magic that can be obtained from Brimstone's shop, usually in exchange for some teeth. They can physically manifest in the form of beads, such as those worn on Karou's necklace, or in the form of metal coins. Wishes, like currency, come in denominations: scuppy, shing, lucknow, gavriel, and bruxis. Scuppies are the least valuable wishes, while bruxis are the most valuable ones. However, unlike money, wishes cannot be combined to form stronger wishes. Wishes are created using pain, and the amount directly corresponds to the denomination of wish.
A scuppy is the least valuable wish. It manifests in the form of beads, and requires little pain to create. Thus, Brimstone is more free with giving scuppies away, putting them in teacups for Karou to take. Scuppies can accomplish very small things, such as making someone itch.
A shing is slightly more powerful than a scuppy. Karou has to earn these wishes from Brimstone by completing his errands, while hunters can also earn them from the tooth trade. Shings take the form of bronze coins and are used for minor wishes, such as making eyebrows grow unnaturally fast, erasing pimples, and changing hair color.
A lucknow is more powerful than the previous two denominations. They can be earned through the tooth trade, although the pain involved must be greater than that required for a shing. Lucknows allow people to speak new languages without learning them, and can cause physical alterations to the body, such as growing a tail.
A gavriel is the second most powerful wish, and is the largest that can be bought from a tooth trade. Bain is given two of these from a large haul of predators' teeth, much to Karou's dismay. Gavriels can grant wishes such as flight and invisibility.
A bruxis is the more powerful wish, and therefore requires the most pain to create. Traders can only obtain a bruxis by self-extracting all of their own teeth. Although a bruxis can accomplish the most, such as granting long life and knowledge, it can also go very wrong when parameters are not specified. Thus, when Izîl wishes for knowledge of the things Brimstone won't tell him, he gets the Fallen seraph Razgut on his back, telling him secrets, but also driving him mad.
- Lucknow is the name of a city in India.
- Bruxis may come from the medical term "bruxism", which is a term used to describe grinding of the teeth and clenching of the jaw.