Constance Quinlan is the Owners of Ottos Books, and is a central character in the Gamers Saga and also Alterverse Saga Book I - Dark Home. She is one of the main plotters against the characters, and who wants to take possession of the infamous Book that the four gamers find. Constance was the daughter of the original bookshop owner, and after her father died, some say by mysterious means, she became owner.
Constance is well known in Dark Home as a devious schemer. However she is betrayed by a well known cut throat named Kain over the book and she eventually finds out that she has a more critical role than she wants.