I expect this is a pricing bug and will be quickly corrected, but currently it's marked free.
http://www.baenebooks.com/p-2906-w20...y-15-2016.aspx
The Road to Hell
by David Weber and Joelle Presby
The Seer
by Sonia Lyris
Imperative
by Steve White and Charles E. Gannon
Phoenix Ascendant
by Ryk E. Spoor
Into the Maelstrom
by David Drake and John Lambshead
By Tooth and Claw
by S. M. Stirling, Mercedes Lackey, Eric Flint, and Jody Lynn Nye
Mars, Inc.
by Ben Bova