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The Riddle of the Sphinx

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Can Malia and Jaden find the Sphinx before they exterminate humanity? A mysterious entity known only as “The Sphinx” is planning to exterminate humanity. But who—and where are they? And how—and whe...
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  • 16 June 2026
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Can Malia and Jaden find the Sphinx before they exterminate humanity?

A mysterious entity known only as “The Sphinx” is planning to exterminate humanity. But who—and where are they? And how—and when will they carry out their plans? Can Malia and Jaden find them before it’s too late?

If you like fast-paced sci-fi thrillers, you’ll love fourth sequel to The Secret of Giza!

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Price: $19.99
Pages: 366
Publisher: Vinci Books Ltd
Imprint: Vinci Books Ltd
Publication Date: 16 June 2026
Trim Size: 7.80 X 5.10 in
ISBN: 9781036709044
Format: Paperback
BISACs: YOUNG ADULT FICTION / Science Fiction / Alien Contact, Science fiction, YOUNG ADULT FICTION / Thrillers & Suspense / General, YOUNG ADULT FICTION / Action & Adventure / General, YOUNG ADULT FICTION / Family / Siblings, Thriller / suspense fiction, Adventure / action fiction, Technothriller
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Ken Warner grew up reading science fiction and fantasy; his early favorites were The Chronicles of Narnia, Dune, and of course, Lord of the Rings. When he began his martial arts training in high school, he heard many myths and legends about masters who possessed mysterious powers, typically attributed to their internal chi energy. He often thought these legends would make a great story. This ultimately led to his first books, The Katana Series. Ken continues to focus on science fiction and fantasy in his writing. He went full time with his author career late in 2020. Ken lives in Connecticut with his wife, Parveen, and their many dogs and cats.