The Lady in Lilac

 is a potential Surgeon crew member, however note that unlike most Surgeons, she does not count as A Doctor Aboard.

Character Description
"Now where exactly did you meet, again? Did Clathermont the tattooist introduce you?"

Obtaining
The  can be recruited in An Old Friend, which occurrs when  Terror exceeds 75 and you have a Tattoo. Disappears when Terror goes below 26.

Obtaining her also grants the Steam Achievement.