Air

When the dead rise in Houston, Dave and Chris Thompson find themselves stranded on the top floor of the Liberty Medical Center, with nowhere to run and no help in sight. With Dave's broken leg making movement impossible and the disintegration of civilization accelerating around them, they have to act fast, or be consumed by the seething horde below.

*WARNING* This story is about 10,000 words, or 36 pages long in paperback - a little longer than a short story, but shorter than a novella.

Book 1 - Fire: The Collapse
Book 2 - Air: Mortal Choice
Book 3 - Earth: Desperate Measures
Book 4 - Water: The End of Us