The Naked Sun
Isaac Asimov
The Golden Ratio: The mathematical language of beauty
Fernando Corbalán
027 The Secret of Skull Mountain
Franklin W. Dixon
The Hardy Boys Mystery Stories (27)
The Swiss Family Robinson; or Adventures in a Desert Island
Johann David Wyss
The Lost Continent of Mu
James Churchward; David Hatcher Childress
Atlantis Found
Clive Cussler