When Malkis of Tartarus insists upon attending the Interplanet Compact Conference being held on the planet Cytherea, Rona Scott experiences a terrifying premonition that he is in imminent danger. Soon, she receives word that his ship has been attacked and destroyed by their dreaded mortal enemies, the Gorgonians. Malkis is presumed dead. But Rona stubbornly refuses to believe this. She enlists the aid of her friend and former CO, Richard Hughes, captain of Astrella II. Risking charges of insubordination, they search for Malkis beyond the boundaries of the known Galaxy -- acting without orders! Both Rona and Hughes are well aware of the reputation of the merciless alien beings known as "Gorgonians"--they leave no witnesses and they never take prisoners! About the Author M. R. Tighe is also the author of Judgment on Tartarus.

There's a traitor on the planet Tartarus! With the insider's aid, Dar-kan hira-Gurd -- the beautiful, sadistic, dangerous Ghendarian commander -- invades the City of the Ruler. She usurps the throne of Ahn-eld, then plots her long-awaited revenge upon Malkis of Tartarus. Acting on a gut instinct that the planet is under attack, Richard Hughes, commander of Astrella II, risks battling Ghendarian warships in a desperate attempt to rescue Malkis and Rona. But in order to save his wife, his world, and his friends from the brutal and merciless invaders, Malkis is forced to make an unthinkable sacrifice! Ransom of Tartarus is the third book in the Tartarus Trilogy. Books one and two of the trilogy are Judgment on Tartarus and True Son of Tartarus.

The #1 New York Times Bestseller | Now a series on Disney+ 12-year-old Percy Jackson discovers he is the son of Poseidon in the opener to the hilarious, fast-paced adventure fantasy series for young readers ages 10 and up The eBook edition of the first book in Rick Riordan’s thrilling series, filled with magic, mythology, and plenty of monsters Percy Jackson is about to be kicked out of boarding school again—he can't seem to stay out of trouble. Is he supposed to stand by while a bully picks on his scrawny best friend? Or not defend himself when his teacher turns into a monster and tries to kill him? Mythical creatures seem to be walking straight out of the pages of Percy's Greek mythology textbook and into his life. What’s worse, he's angered a few of them: Zeus's master lightning bolt has been stolen, and Percy is the prime suspect. Percy and his friends Grover the satyr, and Annabeth, the demigod daughter of Athena, must find and return Zeus's stolen property and bring peace to a warring Mount Olympus. They travel cross country to the gates of the Underworld in Los Angeles, facing a host of enemies determined to stop them. Withmillions of copies and over 10 years spent on the New York Times bestseller list, Percy has also become a movie, a Broadway musical, and now a Disney+ series. He continues to find fans in classrooms and libraries across the world.

Newly assigned to the space cruiser Astrella II, captained by the legendary "Hero of the Gorgonian Wars," Richard Hughes, Ensign Corona Scott fears her long-dreamed-of career is about to be deep-sixed! She runs afoul of her new CO's volcanic temper, and Med Supervisor Johann Weiner warns her that Astrella's ExO, Malkis of Tartarus, is going to make her life a living Hell. He hates Terran females! Rona's ideals are put to the test as the shocking bigotry and hatred she finds aboard Astrella culminate in sabotage and murder and, ultimately, in a serious rift between Hughes and his ExO. Without warning, Astrella is mysteriously dispatched to the enigmatic planet Tartarus, where Rona Scott encounters an unsought destiny beyond her wildest dreams, and where the fate of Astrella's crew rests upon the outcome of a barbaric, bloody duel to the death!

In their first encounter, demigod Percy Jackson and magician Carter Kane had to battle a giant crocodile on Long Island. A month later, Annabeth Chase ran into Carter's sister, Sadie, on the A train to Rockaway, where the pair fought a god named Serapis. Now trouble is brewing again, this time on Governor's Island. An ancient Egyptian magician named Setne has come back from the dead and is experimenting with Egyptian and Greek magic, trying to become a god himself. He's so powerful and tricky that all four—Percy, Annabeth, Carter, and Sadie—have to team up against him. But their usual weapons and spells aren't going to cut it this time. Will the heroes be taken down by a wannabe god who looks like Elvis, or will they rise to the challenge? Told from Percy's point of view, this third demigod-magician crossover story has all of the spunk and action that Rick Riordan fans crave.