Finlock is an elderly woman of Del. She is a dollmaker who lives and owns a shop near Del Bakery. She lost her husband and children during the Shadowlands invasion and had never quite recovered from it.
Mistress Finlock had mental troubles resembling a kind of post-traumatic stress disorder following her husband and children's demise in the Shadowlands invasion, and seemed to suffer from a case of obsessive-compulsive disorder. Ever since the Shadow Lord's tyranny, Mistress Finlock had refused to sell a single doll, however she compulsively bought materials to create more dolls and only managed to scrape out a living mending broken ones that were brought to her. The compulsiveness resembles the case of Master Sheevers, the once famous Del potter now living in hiding, collecting and guarding his clay lanterns.