"The singular aspect of Deadly Equation is the attention to detail in crafting the pieces that unite the mystery. The reader must solve one aspect before discovering the next clue in this riveting novel. This is an incredibly immersive read that adventure and mystery buffs will not be in a hurry to put down." — Readers' Favorite A trauma patient's dying request of AJ Docker leads him and his retired police dog, Banshee, to embark on their latest adventures. Partnering with his patient's sister, they embark on a quest to uncover powerful research that could alter the course of humanity. Shadowy enemies pursue them in Washington, D.C., in a race to capitalize on the information, while a new threat reveals itself at Doc's hospital. A greedy corporation is attempting to take over the emergency room, threatening the quality of healthcare nationwide. Doc has to fight a billion-dollar company to save more patients' lives as well as the careers of competent medical professionals. Banshee has his back as he battles on all fronts. Deadly Equation , book four in the AJ Docker series, delivers nonstop action alongside dramatic scenes from the emergency room. Using his own medical experience, Gerlacher brings readers into the chaotic, sometimes humorous, and sporadically violent world of the emergency room. Read the AJ Docker and Banshee Thrillers in any order, or follow the series from the beginning: Last Patient of the Night - Faulty Bloodline - Sin City Treachery - Deadly Equation - Terminal Exchanges - The Phantom Files "The accuracy of medical details and credible bomb threats mixed with genuine characters guarantees an unputdownable read. Buckle in and get ready for a fast-paced ride!" -Ivanka Fear, author of The Dead Lie and Where is My Husband? "The singular aspect of Deadly Equation is the attention to detail in crafting the pieces that unite the mystery. The reader must solve one aspect before discovering the next clue in this riveting novel. This is an incredibly immersive read that adventure and mystery buffs will not be in a hurry to put down." - Readers' Favorite Gary Gerlacher is a pediatric emergency physician who trained and worked in multiple Texas emergency rooms before opening his own pediatric urgent care clinics. His thirty years in medicine have focused on expanding access to high quality care for all children, and his stories give a unique view of the inner workings of the emergency room.For fun, he's opening a competitive cheer gym with his twin daughters, and he likes to golf and race cars. Gerlacher can be found eating cheese pizza most days of the week. He has three adult children and resides in Dallas with his two rescue dogs and his wife Tamara. Visit Garygerlacher.com to stay up to date on future books.