2000s Koontz Bundle – Relentless, Breathless, Velocity, Your Heart Belongs to Me

Modern Koontz at full throttle! These high-speed suspense novels are full of mystery, heart-pounding tension, and strange science. ⚡ Relentless – A writer becomes the target of a deadly stalker 🌬️ Breathless – A strange encounter hints at a coming change 🕑 Velocity – A terrifying game with a ticking clock ❤️ Your Heart Belongs to Me – A heart transplant… and a haunting gift • All hardcover editions in like new or gently used condition • Great for fans of newer thrillers and standalones • Perfect binge reading for suspense fans! 📦 Fast shipping from a clean, smoke-free home.