Wade Davis
Beyond The Deep is an extraordinary and heroic account. I shuddered as I read it. (Wade Davis, Explorer-in-Residence, National Geographic Society, author of The Serpent And The Rainbow)
William F. Buckley Jr.
I did it as a boy and felt the elation and the terror of speleology...[a] wonderful account of the ultimate experience below the surface of the Earth.
Jeff Long
From the opening page...Beyond The Deep plunges you into a tubular heart of darkness. (Jeff Long, author of The Descent)
Bernie Chowdhury
For anyone wanting to vicariously experience the hardship and dangers of expedition life underground, this is the book to read. (Bernie Chowdhury, author of The Last Dive and publisher of Immersed: the international technical diving magazine.)
Rick Ridgeway
...a page-turning adventure that gives you a front-row seat to...the first view of a place on Earth never before visited by human beings. (Rick Ridgeway, co-author of Seven Summits)
Hazel A. Barton
... describes one of the most significant achievements of modern exploration, with personal stories that make this an exciting, page-turning read. (Hazel A. Barton, Ph.D., co-star of the IMAX film, "Journey into Amazing Caves")
Edwin E. Aldrin
A riveting account of one of the most treacherous cave descents ever, I'd thought there could be no environment as alien as the lunar surface. No more. (Edwin E. "Buzz" Aldrin)
David Breashears
If you love stories about man's quest to reach the highest summits, you'll find this account of plumbing one of the Earth's deepest chasms equally compelling. (David Breashears, author of High Exposure and director of the Imax film, Everest)