(Below is a start to her lore, but as with so many, needs to be fleshed out more)

Sketch was only supposed to be passing through the Clan, but before anyone knew what was happening, she had moved into her own little corner of the lair. Sketch is hyperactive, even for a Spiral. No one in the Clan has ever seen her sleep, and she often acts mildly insane, in a manner fitting of sleep deprivation.

No one in the Clan has put this together yet, but shortly after her moving in... little things would go missing in the lair. Sometimes just a pebble or two, sometimes an entire chest. The Captains of the Guard have often questioned Aurum, because she is the main Ridgeback in the lair. They never think to ask Sketch where she gets her hoard. Some of the younger dragons will come to her for illicit items or when they are jonsesing for some Manaweed or Mycena Mushroom.

Occasionally Sketch will ask Gingersnap and her crew to make deliveries or to pick something up for her while they are adventuring. Gingersnap never asks any questions and never opens any packages, she knows better than that.

Sketch will also provide supplies to the Madam and her family, to help entertain the clients, in exchange for some space connected to (whatever the name of the brothel place is)