"Detective Frank McCord and the Foghorn Blues" by W. Lawrence Nash is a thrilling multi-layered detective novel which will keep you guessing to the last page. 
Frank is thrust into a mind-bending paradox when he is engaged by a client who exists impossibly in today’s world, to find a missing person from centuries past. He is drawn into a tangle of time loops to the long-gone era of the great sailing ships. Sleepless nights are filled with a nightmarish alternate reality as each night he awakes clawing at his throat for air, drenched in sweat and suffocating from a stranglehold of terror. Every blazing red eye, and every putrid swirl of the green slime maelstrom repeats and repeats, yet each time it terrifies him anew as he falls into what he hopes to be sleep, but never is. His hours of blackness are filled with the same cry for help and Paula is still dead, and nothing can change that, and every day, a long defunct foghorn calls him to the sea and to the concrete jetty where Paula's shoe was found. He follows the wrong trails, trusts the wrong people, loves the wrong woman, and drives himself headlong into a calamitous conclusion which traps him from every direction. Filled with nail-biting suspense and heart-pounding action, this book is a must-read for fans of crime fiction and detective stories.