Ad Stellae Books

Publisher info

Ad Stellae Books is a personal imprint used by Sylvia Engdahl on both print and ebook editions of her novels for adults, plus reissues of her Young Adult novels. In addition, it is used on the ebook editions of YA books by her mother, Mildred Allen Butler.

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Book trailer for Stewards of the Flame
Trailer for Stewards of the Flame, an adult science fiction novel by Sylvia ENgdahl.

Publisher of



The Hidden Flame: Box Set - Stewards of the Flame + Promise of the Flame
Series: The Hidden Flame. Price: $4.99 USD. Words: 333,240. Language: English. Published: April 7, 2017 by Ad Stellae Books. Categories: Fiction » Science fiction » General, Fiction » Science fiction » Utopias & dystopias
When burned-out starship captain Jesse Sanders is seized by a dictatorial medical regime and detained on the colony planet Undine, he has no idea that he is about to be plunged into a bewildering new life that will involve ordeals and joys beyond anything he has ever imagined. Ultimately, he finds himself responsible for the survival of three hundred people isolated on a raw new planet.
Journey Between Worlds
Price: $2.99 USD. Words: 64,290. Language: English. Published: October 19, 2015 by Ad Stellae Books. Categories: Fiction » Young adult or teen » Romance, Fiction » Romance » Sci-fi
Melinda has a plan for her life, and a trip to Mars isn't part of it. When she receives a ticket as a graduation gift from her dad she is dismayed, but reluctantly she agrees to go with him. After meeting Alex, a second-generation Martian colonist, she is torn between what she has always wanted and upsetting new feelings. Only a terrifying experience makes her aware of what really matters to her.
The Rising Flame: Box Set - Defender of the Flame + Herald of the Flame
Series: The Rising Flame. Price: $4.99 USD. Words: 296,680. Language: English. Published: May 25, 2015 by Ad Stellae Books. Categories: Fiction » Science fiction » General, Fiction » Visionary & metaphysical
Starship pilot Terry Radnor is elated to be among those chosen to defend the secret colony Maclairn against enemies who pose a threat to the spread of paranormal human mind powers, and commits himself wholly to its cause. He has no idea of how much grief that commitment will cost him, nor does he guess that the destiny ultimately in store for him is far stranger than anyone could have imagined.
Herald of the Flame
Series: The Rising Flame, Book 2. Price: $2.99 USD. Words: 152,750. Language: English. Published: October 15, 2014 by Ad Stellae Books. Categories: Fiction » Science fiction » General
After saving the secret colony Maclairn from terrorists, Terry Steward sets out to further its plan to spread advanced mind powers to the worlds of humankind. Yet Maclairn’s enemies still pose a threat, and on Earth the persecution of people with such powers is increasing. Seeking a way to defeat the conspiracy, he does not guess that he is destined to play an even greater role in human history.
Children of the Star: The Complete Trilogy
Series: Children of the Star. Price: $6.99 USD. Words: 278,180. Language: English. Published: November 4, 2013 by Ad Stellae Books. Categories: Fiction » Science fiction » General, Fiction » Science fiction » Utopias & dystopias
(4.00)
Omnibus edition (box set) of the trilogy This Star Shall Abide (aka Heritage of the Star), Beyond the Tomorrow Mountains, and The Doors of the Universe. Noren was a heretic—he defied his world’s High Law and had no faith in the Prophecy's fulfillment. But the more he learned of the grim truth about his people's situation, the less possible it seemed that their rightful heritage could be restored.
The Disobedient Queen: Katherine of Valois
Price: $2.99 USD. Words: 44,160. Language: English. Published: September 25, 2013 by Ad Stellae Books. Categories: Nonfiction » Biography » Royalty biography, Nonfiction » History » Medieval
Katherine of Valois, born a French princess, was the wife of King Henry V of England, the mother of Henry VI, and ultimately the grandmother of Henry VII, the first Tudor king. In view of the current widespread interest in the Tudors, young adult readers will be fascinated by the story of the widowed Queen who fell in love with—and secretly married—the commoner who gave that dynasty its name.
Defender of the Flame
Series: The Rising Flame, Book 1. Price: $2.99 USD. Words: 146,520. Language: English. Published: April 19, 2013 by Ad Stellae Books. Categories: Fiction » Science fiction » General, Fiction » Visionary & metaphysical
(4.75)
Starship pilot Terry Radnor, involved in a secret mission after training that gives him extraordinary physical and psychic capabilities, finds fulfillment in love and in commitment to a cause—until an ironic twist of fate tears him away from everything he has ever cared about. Is there any hope that he can fulfill his pledge to protect the world whose safety is crucial to the future of humankind?
The Planet-Girded Suns: The Long History of Belief in Exoplanets
Price: $4.99 USD. Words: 89,260. Language: English. Published: May 18, 2012 by Ad Stellae Books. Categories: Nonfiction » History » Civilization, Nonfiction » Science and Nature » History of Science
From the late 17th century until the end of the 19th, almost all educated people believed that the stars are suns surrounded by inhabited planets. This book, first published by Atheneum in 1974 and now updated to include the scientific knowledge gained during the past 40 years, tells the story of the rise, fall, and eventual renewal of widespread conviction that we are not alone in the universe.
Anywhere, Anywhen: Stories of Tomorrow
Price: $0.99 USD. Words: 110,970. Language: English. Published: November 20, 2011 by Ad Stellae Books. Categories: Fiction » Young adult or teen » Anthology, Fiction » Young adult or teen » Sci-Fi & fantasy
Intended not for SF fans but for teens who don’t ordinarily choose science fiction, this anthology of stories about the future focuses on the timeless aspects of being human. It aims to suggest ideas about the future in a way readers who prefer real-life settings to strangeness will enjoy. Contributors include Sylvia Engdahl, Shirley Rousseau Murphy, Carol Farley and other authors of YA books.
Twice Queen of France: Anne of Brittany
Price: $2.99 USD. Words: 51,540. Language: English. Published: March 20, 2011 by Ad Stellae Books. Categories: Nonfiction » Biography » Royalty biography, Nonfiction » Biography » Historical biography
Anne of Brittany was only 12 when, in 1488, she became its Duchess, but already she was among the best-educated women of her era and she was determined to preserve the duchy’s independence. At 15 she averted takeover by France when she married its king, Charles VIII, and after he died she married his successor, Louis XII, becoming the only person ever twice crowned Queen of France. Ages 12 up.
The Far Side of Evil
Price: $2.99 USD. Words: 94,920. Language: English. Published: February 1, 2011 by Ad Stellae Books. Categories: Fiction » Young adult or teen » Sci-Fi & fantasy, Fiction » Science fiction » Utopias & dystopias
Assigned as a observer to a world whose people may soon destroy their civilization, Anthropological Service agent Elana expects merely to gain knowledge that may save other planets. When a young, inexperienced agent unwittingly endangers the entire world by a well-meant but ill-advised attempt to intervene, Elana finds that only she--at great cost--can prevent an immediate war of annihilation.
The Doors of the Universe
Series: Children of the Star, Book 3. Price: $2.99 USD. Words: 120,670. Language: English. Published: April 5, 2010 by Ad Stellae Books. Categories: Fiction » Science fiction » Utopias & dystopias, Fiction » Science fiction » General
Children of the Star trilogy, Book Three. Noren had found faith in the Prophecy’s fulfillment in the face of overwhelming odds. Yet the more he learned of the grim truth about his people's situation, the less possible it seemed that their world could ever be changed. It would take more drastic steps than anyone imagined to restore their rightful heritage—and he alone could do what was needed.
Beyond the Tomorrow Mountains
Series: Children of the Star, Book 2. Price: $2.99 USD. Words: 84,000. Language: English. Published: April 5, 2010 by Ad Stellae Books. Categories: Fiction » Science fiction » Utopias & dystopias, Fiction » Young adult or teen » Sci-Fi & fantasy
Children of the Star trilogy, Book Two. Once Noren gained admission to the City where technology was hidden, he thought he had discovered how to make metal and Machines available to everyone and end the rule of the Scholars. But he soon learned it was not as simple as he had believed. Was it right to let people go on believing in the promises of a Prophecy that might not come true after all?
This Star Shall Abide: aka Heritage of the Star
Series: Children of the Star, Book 1. Price: $2.99 USD. Words: 80,530. Language: English. Published: April 5, 2010 by Ad Stellae Books. Categories: Fiction » Young adult or teen » Sci-Fi & fantasy, Fiction » Science fiction » Utopias & dystopias
Noren knew that his world was not as it should be—it was wrong that only the Scholars and Technicians could use metal and Machines. It was wrong that only they had access to the knowledge hidden in the mysterious City. He was a heretic. He defied the High Law and had no faith in the Prophecy’s promised fulfillment. But was defiance enough, or could some way be found to make it come true?
Promise of the Flame
Series: The Hidden Flame, Book 2. Price: $2.99 USD. Words: 169,470. Language: English. Published: March 15, 2010 by Ad Stellae Books. Categories: Fiction » Science fiction » General
Three hundred people, isolated on a raw new planet in the hope that their psi powers will become the foundation of a culture that can someday shape the future of humankind. If they don’t starve first or lose heart in the face of hardships beyond any they imagined--and if their kids can be raised to believe in the dream. Though a sequel to Stewards of the Flame, this novel is complete in itself.
Stewards of the Flame
Series: The Hidden Flame, Book 1. Price: $2.99 USD. Words: 166,810. Language: English. Published: March 15, 2010 by Ad Stellae Books. Categories: Fiction » Science fiction » General, Fiction » Science fiction » Utopias & dystopias
(4.00)
When starship captain Jesse Sanders is detained by a dictatorial medical regime on the colony planet Undine, he is plunged into a life involving ordeals and joys unlike anything he has ever imagined. This controversial novel deals with the so-called paranormal powers of the human mind and appeals to a wide range of readers who question the dominant medical philosophy of today's society.


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