Finished (3085) Caspak Series #2; The People that Time Forgot

I've lost track of how many times I've listened to this book other than this is the third version.

Version #1: text to speech.
Version #2: Librivox.org.
Version #3: Audible.com.

I may have listened to the Librivox version a couple of times. Needless to say, its a great book.