Estar Books: 532 books

A simple paleontologist discovers a mysterious ancient creature that was sucking the blood from its victims.

The murder of an innkeeper and it seems that his bird will lead the detective to the murderer in this caper!

A pair of teens get lost on the Andes Mountains, where they discover a lost tribe and perhaps the Incas' Lost Treasure House...

The Elixir of Youth has been sought after by many! But what happens when you find it? What happens when it exceeds the wildest expectations of the scientists?

A pair of boys sign on with a whaler and embark on the adventure of a lifetime!

The passengers of the steamship Chiriqui saw a meteor that was heading there way! They thought that they were doomed… but was it really a meteor?

Dr. Stokes found an amazing mummy in a burial mound! When strange things begin to occur, he wonders if there is more to this than a unique mummy?

Doctor Mentiroso made an astounding discovery! That is it is possible to eliminate time and enter either the past or the future: these things have actually been accomplished!

A series of murders leads back to a Dirigible of Death…

Not always does the past bury its dead. Out of the yellow waters of Pei Po came a strange vengeance to single out Dorus Noel in the tangle of New Yorks Chinatown.

The mammoths of the ancient world have been wonderfully preserved in the ice of Siberia. The cold only a few miles out in space will be far more intense than in the polar regions and its power of preserving the dead body would most probably be correspondingly increased. When the hero-scientist of this...

The secret lay hidden at the end of nine landings, and Medusa-dark was one man's search for it —in the strangest journey ever made.

When wireless telegraphy, or the radio and as it is now called, was first perfected, the value of its use on shipboard was at once seen. The following is the story related by the captain of a passenger vessel in response to the query that that had been put to him as to whether he had ever used it to summon help; in other words, sent out an SOS Call.

The Dom had a triple crown and it was by a strange circumstance indeed that he set it on Green Wing's heads!