In New York Times bestselling author Jonathan Maberry's thrilling Relentless, Rogue Team International joins Joe Ledger in a new hunt that spans the globe and journeys deep into the terrifying landscape of the human heart.
JOE LEDGER's world has been torn apart. The people closest to him have been savagely murdered and Ledger is on the hunt for the killers. His already fragile psyche has cracked apart, allowing a dangerous darkness to overwhelm him.
His hunt takes him deep into the world of the deadly black market weapons sales, and standing in his way are a new generation of private military contractors. These mercenaries have been enhanced with cutting-edge cybernetics and chemical enhancements, transforming them into real-world super soldiers. Stronger, faster, harder to hurt, and fitted with built-in weapons. They are beyond anything Joe has ever faced.
But he is not the Joe Ledger they expected to fight. He is defined by the Darkness now. The attempt to destroy him-to break him-has backfired. Instead his enemies have turned him into a far more fearsome weapon.
Everyone is out for blood.

JONATHAN MABERRY (he/him) is a New York Times bestselling, Inkpot winner, five-time Bram Stoker Award-winning author of Relentless, Ink, Patient Zero, Rot & Ruin, Dead of Night, the Pine Deep Trilogy, The Wolfman, Zombie CSU, and They Bite, among others. His V-Wars series has been adapted by Netflix, and his work for Marvel Comics includes The Punisher, Wolverine, DoomWar, Marvel Zombie Return and Black Panther. He is the editor of Weird Tales Magazine and also edits anthologies such as Aliens vs Predator, Nights of the Living Dead (with George A. Romero), Don't Turn out the Lights, and others.