Billy Costa was a gyptian boy who was captured by the gobblers. With the help of Lyra Silvertongue he escaped from Bolvangar.
Biography
Early life
Billy Costa grew up on a gyptian boat with his mother, Ma Costa and his brother Tony Costa.
Kidnap
During the horse fair in Oxford, Billy got captured by the gobblers after running off in the middle of holding a horse-trader's horses and taken to Bolvangar. He stood guard with Roger Parslow while Lyra Silvertongue and Kaisa took advantage of a fire drill to release the dæmons who had been victims of intercision. He was reunited with his brother when the gyptians and witches liberated the children.
Adaptations
Film
In the film The Golden Compass, Billy's character is fused with that of Tony Makarios. Billy has the dæmon named Ratter and he becomes a victim of intercision.