While seeking to solve the mystery of "the trained vampire murders," Doc Savage and his amazing crew suddenly find themselves prisoners of Sol Yuttal and Hadi-Mot aboard a hijacked Zeppelin. Their deadly destination is a fabulous lost diamond mine guarded by carnivorous plants and monstrous, bloodsucking bats.We are happy to announce this classic book. Many of the books in our collection have not been published for decades and are therefore not broadly available to the readers. Our goal is to access the very large literary repository of general public books. The main contents of our entire classical books are the original works. To ensure high quality products, all the titles are chosen carefully by our staff. We hope you enjoy this classic.