When Nic, a slave in the mines outside of Rome, is forced to enter a sealed cavern containing lost treasures of Julius Caesar, he finds himself in possession of an ancient amulet filled with magic once reserved for the Gods, and becomes the center of a conspiracy to overthrow the emperor and destroy Rome.

"Just when you thought it was safe to go back into the teahouse. . . . Miss Charlotte Pettifer belongs to a secret league of women skilled in the subtle arts. That is to say-although it must never be said-witchcraft. The Wicken League strives to improve the world in small ways. Using magic, they tidy, correct, and manipulate according to their notions of what is proper, entirely unlike those reprobates in the Wisteria Society. When the long-lost amulet...

Now a driver in the chariot races, Nic is still a target of the Praetors because of the magical amulet he found, and they will do anything to get their hands on it--and meanwhile Atroxia is beginning to wake up.

In the third installment of the thrilling Amulet series, Emily, Navin, and their crew of resistance fighters charter an airship and set off in search of the lost city of Cielis, which is believed to be located on an island high above the clouds. The mysterious Leon Redbeard is their guide, and there's a surprising new addition to the crew: the Elf King's son, Trellis. But is he ally or enemy? And will Emily ever be able to trust the voice of the Amulet?...

After chasing after the tentacled monster that kidnapped their mother, Emily and Navin find themselves in a magical but dangerous world of man-eating demons and shadowy enemies, where they must learn to control a powerful amulet given to them by their inventor grandfather.

Emily and her brother Navin head for Kanalis to find an antidote for the poison that is killing their mother.

"After her confrontation with Ikol, Emily finally understands the stone's power and what she must do to defend Alledia from the shadows. As she travels to Typhon to help her mom and Navin, Prince Trellis returns to the Kingdom of the Elves to save his countrymen -- and confront the fraud who has seized power in the absence of a king. The threat of darkness follows all Stonekeepers closely, and it will take the strength of both new friends and old...