John Hennessy has 2 audiobooks on Listento.it, narrated by 2 narrators. The most-rated is Life Descending.

Night 1: 12 billion taken. Day 1: Confusion. Night 2: 13 billion taken. Day 2: Panic. Night 3: 13 billion taken. Day 3: The fight for survival begins. In 2048, the human population borders 39 billion after the termination of the birth control industry, and the realities of overcrowding have sunken into the minds of the world…until billions mysteriously go missing. In the wake of civilization's collapse, a trio of teenage gamers from Washington struggle to endure. Maggy, a strong-willed intellectual, leads Darrel and Flix, two shy geeks, on an expedition down the west coast, as they search for answers about the source of humanity's downfall, determined to survive the deadliest threat the Earth has ever known.
©2012 John Hennessy (P)2013 Audible, Inc.

War, plague, and mad kings promise to rip the world of Leterra asunder. With the memories of a loyal Scout for the Northern Army, Tom Navo endures to wrap up one last brutal assignment, with dreams of living out a peaceful life with his family. As chaos threatens the continent, his imagined life becomes more of a fanciful illusion. A journey home soon becomes a fight for his life, a search for a mysterious and powerful relic only rumored to exist, and a firsthand account of how greed and delusion can make humans do the unspeakable. Surrounded by the most unlikely of friends, Tom faces challenges that he never could have conceived of even in his most twisted nightmares, not just for his own sake, but for the survival of an entire world, whose future teeters perilously on the brink of doom...before all life descends into shadow.
©2011 John Hennessy (P)2014 John Alexander Brancy