Books like Three by Ted Dekker

Thomas Hunter, a failed writer in Denver, is thrust between two worlds—one as a battle‑scarred general, the other racing to stop terrorists releasing a fatal virus—while his dreams and reality collide.

FBI Agent Brad Raines hunts a Denver serial killer who leaves bridal veils at each scene. When he turns to the gifted psychiatric ward for help, he must decide if sanity lies inside the walls or beyond.

Seminarian Kevin’s serene life is shattered when a mysterious caller demands he confess an unknown sin or face a deadly threat.

When a relentless rainstorm and a plague threaten rural Thunder Ridge, Texas, schoolteacher Audrey Pride must care for the sick while confronting her growing affection for widower Eli Gray as their community battles water and disease.

Some say the great mystery of how one can live in two worlds at once died with Thomas Hunter many years ago. Still others that the gatewway to that greater reality was and is only the stuff of dreams. They are wrong. In the small town of Eden, Utah, a blind girl named Rachelle Matthews is about to find out just how wrong. When a procedure meant to restore Rachelle's sight goes awry, she begins to dream of another world so real that she wonders if Earth might only be a dream experienced when she falls asleep in that reality. She is the prophesied one who must find and recover five ancient seals -- in both worlds -- before powerful enemies destroy her. If Rachelle succeeds in her quest, peace will reign. If she fails, both worlds will forever be locked in darkness. So begins a two-volume saga of high stakes and a mind-bending quest to find an ancient path that will save humanity. The clock is ticking; the end rushes forward. Ready? Set? Dream. - Jacket flap.