Dotty is the youngest member of the club.
The youngest member of the club, endured an arsenal of deprecating nicknames from her elder sister and friends: "half-pint," "short-stuff," and the like. A prodigy, she normally stayed at home; from there, Dotty provided case-solving information from her minicomputer and/or results from various forensic tests. She also had access to high-tech communications equipment, including audio/video links to the Club's car...and to their wristwatches, which doubled as pagers. (Where and how the Club built or otherwise acquired these devices was never specified; it was hinted that Dotty herself custom-made them.) Dotty's friends were highly protective of her, and resented it when she joined them in the field...which the girl frequently did, after running out of "homework."