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Radio Hope
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20 October 2026

A gritty post-apocalyptic survival thriller with a single mother gunslinger, a mysterious survival broadcast, cult warlords, wasteland factions, and humanity’s last city under siege.
A single radio signal is broadcasting hope across a dying world.
Annette Cruz is a scavenger, a fighter, and a mother trying to get her son out of the wasteland and into New City, the last refuge of civilization. Outside its walls, the land is poisoned, lawless, and the strong take what they want.
As the Righteous Horde sweeps across the frontier, Annette takes on a dangerous mission to scout their movements, risking everything to protect her son.
But the mission is not what it seems.
The deeper she goes into the wildlands, the more she realizes the threat isn’t just coming from the Horde.
As New City prepares for siege, Annette must decide how far she’s willing to go, and what she’s willing to sacrifice to keep her son safe.
Radio Hope is Book 1 in the Toxic World series, perfect for readers of Hugh Howey and Cormac McCarthy who enjoy dark post-apocalyptic survival fiction, found family, and high-stakes battles for the last refuge of civilization.
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Praise for the Toxic World Series:
★ ★ ★ ★ ★ A convincingly gritty post-apocalypse that kept me turning the pages.
★ ★ ★ ★ ★ A compelling story that stays with you long after the final page.
★ ★ ★ ★ ★ One of the best post-apocalyptic novels I’ve read.
★ ★ ★ ★ ★ More mature, more realistic, and far deeper than most post-apocalyptic novels.
★ ★ ★ ★ ★ Excellent post-apocalyptic fiction with complex characters and real stakes.
Sean is busy working on two fiction series: The Masked Man of Cairo (neo-pulp detective adventure) and The Berlin Murders (historical mystery).
Half of Sean's time is spent on the road researching and writing. He's traveled to more than 30 countries, interviewing nomads in Somaliland, climbing to clifftop monasteries in Ethiopia, studying Crusader castles in Syria, and exploring caves in his favorite state of Missouri.
Sean is always happy to hear from his readers, so drop him a line via his website seanmclachlan.net!