Alcatraz of the Starways

A science fiction novel written in the early to mid-20th century. The story unfolds on the planet Venus, where the main character, Mark Denning, finds himself ensnared in a perilous prison camp known as the Venusian Prison Swamp. Alongside his fellow convicts, Mark struggles to survive amidst the swamp's treacherous conditions while seeking answers to a broader mystery that threatens the