Ace science fiction

The growing affection between the Archangel Gaaron, caretaker of the planet Samaria, and his appointed life-mate, the woman Susannah, is placed on hold--perhaps forever--when a tribe of black-clad strangers invades the planet leaving death and destruction in their wake.

The Ngumi War of 2043 is taking its toll on Julian Class, a soldier who operates an indestructible, remote controlled war machine known as a soldierboy, so when he and his lover make a startling scientific discovery that could set the universe back to the beginning of time, he is very tempted to try it out.

Edinburgh Detective Inspector Liz Kavanaugh, head of the Innovative Crime Investigation Unit, responsible for monitoring the Internet in 2023, is drawn into an international investigation after three ex-cons, united only by criminal records for spamming and a taste for unorthodox erotica, are murdered in Italy, Germany, and Scotland.

On a barren planet near the edge of the civilized galaxy, two religions are practiced, both sects worshipping the same goddess, but when a serial killer begins stalking the priestesses, Interfed Agent Cowen Drake is called in to stop the killer before both religions are destroyed.

As alien spacecraft fill the sky and zap up any human being who dares to go outside, fifteen-year-old Josh and twelve-year-old Megs, living in different cities, describe what could be their last days on Earth.

Contains a collection of short stories written by Isaac Asimov between 1940 through the 1980s, that explore the themes of science fiction, such as robotics, space travel, and aliens.

Kris Bjornson, one of a group of slaves dumped on an uninhabited planet by their Catteni masters, learns to survive with the help of renegade exile Zainal, but when the time comes to join in a revolution against the Catteni, she is torn between her love for Zainal and her desire to return to Earth.

The students of Starbridge Academy--a training school for Earth's young diplomats, translators, and explorers--meet representatives from sixteen other races and, together, they journey across the universe.