Klaus Merkad

Origin
Unknown. Mentioned in Lurking Dragon's writer's guide.

Sentencing
Rape and murderer of 23 children 6 of them sentence to 150x2.7–5.7 as a  penny (allowing sexual abuse during chosen cycles) still serving her black circle cycles during Melody's timeline.
 * Crime: molestation/murderer

stores he/she is used in
Natty Stories (Klaus's previous parent Samuel Chester abducted Natty and abused and raped her.)