Nothing shapes our lives more than the Unknown. It draws us into new experiences, relationships, and knowledge. It pushes us to explore, grow, and reinvent ourselves. Whether it’s as simple as trying a new food or as life-changing as moving to a different country, the Unknown constantly calls us forward. Some seek it willingly, chasing adventure, meaning, or even the mysteries of existence itself. Others hesitate, bound by fear.

That fear is natural. It comes from deep within us, rooted in survival instincts, routine, and the comfort of familiarity. The Unknown is unpredictable—it can bring danger, uncertainty, and change we may not be ready for. Yet, despite this fear, we can’t ignore its pull. We may resist it, pretend it doesn’t exist, or try to stay in the safety of what we know. But eventually, the urge to explore, to push beyond our limits, wins out.

This is the essence of Intruders by Karl Bertain—a gripping story about humanity’s encounter with the unknown. It all begins when a mysterious organism, its origin unknown, is discovered. At first, it seems like a minor scientific find, but as Dr. Gary Decker investigates further, he realizes it’s something far bigger—and far more terrifying—than anyone expected. What follows is a suspenseful journey full of danger, tough choices, and the fight for survival against forces.

Fast-paced and thought-provoking, Intruders explores themes of fear, courage, and the lengths we’ll go to in the face of the unknown. If you love thrilling, action-packed stories, this is one you won’t want to miss.

Coming soon to Amazon and bookstores near you!