"An ingenious medical thriller, suspenseful and cleverly plotted."
--Kathy Reichs, author of Break No Bones
"Palmer's latest has thrills and chills aplenty, while conveying a sobering--make that terrifying--message. Not only is this one heck of a medical thriller, it's a scary wake-up call to what could happen if a few individuals decided to play God, a premise that scared the daylights out of me. Could this happen? Palmer makes you think so."
--Sandra Brown, author of Ricochet
"The Fifth Vial is a nail-biting thriller you don't want to miss."
--Catherine Coulter, author of Point Blank
"Michael Palmer delivers a complex plot, fascinating characters, and plenty of action. The Fifth Vial is a roller-coaster ride that winds its way through the United States, Africa, India, and Brazil on the way to a terrific surprise ending."
--Phillip Margolin, author of Proof Positive
"From knowledge comes power, and from power, temptation. Michael Palmer's The Fifth Vial is a tale set at the very edge of our medical knowledge, and of a thrilling heroine who confronts a theft that haunts me still. I loved it!"
--Tess Gerritsen, author of The Mephisto Club
"Brilliant storyteller Michael Palmer is at the top of his game, and gives us a compelling and thought-provoking tale that will have you looking over your shoulder. It's both realistic and terrifying, and it will keep you up all night!"
--Iris Johansen, author of On the Run
"There's a compelling truth at the center of this high-octane thriller. The twists keep you reading and the questions Palmer poses keep you thinking all night long."
--Tami Hoag, author of Prior Bad Acts
"Michael Palmer, perhaps the best of our medical-thriller writers, has penned an action-packed tale that will have you checking all your body parts for days afterward."
--Terry Brooks, author of Armageddon's Children and The Sword of Shannara