Complex sentence: Ginger (his real forename is never revealed) first appears in "The Black Peril" (1935) as a teenage runaway found hiding in a railway shed, who proves his worth by rescuing Biggles from some enemy agents.
Split into simpler sentences: Ginger (his real forename is never revealed) first appears in "The Black Peril" (1935) as a teenage runaway found hiding in a railway shed. He proves his worth by rescuing Biggles from some enemy agents.