Estar Books: 532 books

Sometimes the simplest and most reasonable request brings astonishing results… 

They ought never to have hired that man. Even the most stupid of personnel managers should have seen at a glance that he was mad… 

Beneath the waves of the Atlantic lay a great menace to Americahundreds of Nazi submarines based in an incredible undersea city!

The sixty stories of the perfectly constructed Colossus building had mysteriously crashed! What was the connection between this catastrophe and the weird strains of the Mad Musician's violin?

A strange light blinks on Vensus and over Earth hovers a mysterious visitantdread harbinger of interplanetary war.

An experiment in to swap the souls of humans.

Edmund Stonewall has invented a space craft that takes advantage of the power of "inter-atomic energy," which enables him to navigate the Ocean of Ether and sail to the shores of another world than ours. He constructs a curious spool-shaped machine and "sets sail" into space, arriving...

Bob Andrews learns an amazing secret from a dying Martian aboard the space-liner— a revelation that brings him and his two companions face-to-face with the greatest adventurer ever to roam the space-way—the Mad Moor!

The Chalice was a symbol of beauty – but like its namesake, evil would plague the owner . . . for the winner of this intergalactic beauty pageant would win the Chalice of Circe…

Mysterious dark out of the unknown deep comes a new satellite to lure three courageous Earthlings on to strange adventures.

The boy was tall and handsome and ... red. ...This boy whom he had always thought of as his son.

Seed of the Arctic Ice and Under Arctic Ice by HG Winter. Killer whales and seal-creatures tangle Ken Torrance in an amazing adventure under the ice-roofed arctic sea.

“Get off my planetoid!” a voice roared across the ether. But Ryan and Hall couldn’t leave even if they wanted too!