Harrison Mandeville was a member of the Scoundrels Club.
He was alerted by one of the Scoundrels Club's butlers that a woman had entered the club and sat in the seat of one of their longest-serving members. Horrified, Mandeville went to confront the woman, Missy, who shrugged off his concerns and attempted to prove her identity as the Master. She was promptly thrown out of the club by Mandeville and three porters and so swore revenge on the club.
As the Marlowe Banquet went underway, Harrison relished in the event. When the group went to gather their copy of Dr Faustus II, the group found that it had vanished from its locked lead box, and soon discovered that someone had thrown it into the fire. Suspecting Missy's involvement, they began shouting for her, only to discover that the various members of the club had been paralysed. Soon, Missy entered the club, along with Saffron, and confirmed their part in the drugging.
Missy then lifted a horse's head onto the table for all to see, which Mandeville recognised as his prized stallion, Downton. As the members slowly began succumbing to the poison, Missy offered the group an antidote: the most prized manuscript the club owned, the last remaining copy of William Shakespeare's Love's Labour's Won. The group devoured the book and then fell into unconsciousness.
Harrison tried to escape Missy but was shot by a dart that completely paralysed him. Missy then dragged him over to her chair in the club and began using him as a rug. (PROSE: Dismemberment)