With his first book published, Garner abandoned his work as a labourer and gained a job as a freelance television reporter, living a "hand to mouth" lifestyle on a "shoestring" budget. He also worked on a sequel to "The Weirdstone of Brisingamen", which would be known as "The Moon of Gomrath". "The Moon of Gomrath" also revolves around the adventures of Colin and Susan, with the latter being possessed by a malevolent creature called the Brollachan who has recently entered the world. With the help of the wizard Cadellin, the Brollachan is exorcised, but Susan's soul also leaves her body, being sent to another dimension, leading Colin to find a way to bring it back. Critic Neil Philip characterised it as "an artistic advance" but "a less satisfying story". In a 1989 interview, Garner stated that he had left scope for a third book following the adventures of Colin and Susan, envisioning a trilogy, but that he had intentionally decided not to write it, instead moving on to write something different. However "Boneland", the conclusion to the sequence, was belatedly published in August 2012.