Titus Groan in particular Lord Sepulchrave's twin sisters, Cora and Clarice Groan. The sisters are not very bright and are power-hungry and resentful, believing that Countess Gertrude holds the position that they rightfully deserve. Steerpike manages to use the twins' ambition for his own ends. He promises them power and influence, and convinces them that they could achieve their goal by burning down Sepulchrave's beloved library. Steerpike prepares meticulously for the act of arson. He arranges for the burning to happen when the entire Groan family and their most important servants are inside the library for a family gathering (Steerpike intentionally failed
Gormenghast (series) The Lost Book of Gormenghast" to coincide with the 100th anniversary of Peake's birth. Gormenghast is a remote and reclusive earldom dominated by the huge Castle Gormenghast at its centre, and ruled by the noble family of Groan since time immemorial. The earldom derives its name from Gormenghast Mountain, and is isolated from the outside world by inhospitable regions on each side of it. To the North are marshy wastelands, to the South are salt grey marshes (and presumably then the ocean), to the East are quicksands and the tideless sea, and to the West are knuckles of endless rock.