The Informer (novel)
Set in 1920s Dublin in the aftermath of the Irish Civil War, the novel centers on Gypo Nolan. Having disclosed the whereabouts of his friend Frankie McPhillip to the police, Gypo finds himself hunted by his revolutionary comrades for this betrayal.
- Gypo Nolan - The informer of the novel's title, he is an ex-policeman and member of the Revolutionary Organization.
- Frankie McPhillip - Gypo Nolan's "bosom friend" and a member of the Revolutionary Organization, he is wanted for a murder committed during a farm labourers' strike and is betrayed to the police by Gypo.
- Dan Gallagher - A commandant of the Revolutionary Organization bent on finding and killing the informer.