Legends claim you can bury a botchling under the family's threshold, perform a ritual and turn it into a lubberkin. That's a sort of, uhh... hob, a guardian spirit that could lead me to your family.
A lubberkin is a friendly household guardian spirit created from a botchling through Aymm Rhoin, an elven naming ritual, during which it is given a proper name and a burial under the hearth of the family estate. A lubberkin looks very similar to a botchling, the main difference being its ghost-like, glowing, white aura and relatively passive behavior.
In 1272, Geralt meets with Velen's self-proclaimed baron Phillip Strenger who had unwittingly created a botchling from his and his wife's unborn child. Geralt is faced with a decision to either lift the curse via Aymm Rhoin (or the Ritual of Naming), or kill the beast off using the "witcher's way". If the ritual is completed, the lubberkin - named Dea - helps Geralt to further track down the fate of the baron's wife Anna, and daughter Tamara.
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See the GWENT standalone game version card: 