EUGENIA KYRIAZIDOU

The day after thirteen-year-old Jack McKinley is told he has six months to live, he awakens on a mysterious island, where a secret organization promises to save his life—with one condition. Jack and three other kids: Aly Black, Cass Williams, and Marco Ramsay, must lead a mission to retrieve seven lost magical objects known as Loculi, which can save their lives only when combined together correctly. The Loculi have been missing for a thousand years, lost amongst the ruins and relics of the Seven Wonders of the Ancient World. With no one else to turn to and no escape in sight, the four kids have no choice but to undertake the quest. On their quest, they learn more about one another and the secret superhuman abilities each possesses, but Jack has trouble finding out his own inner strength. The first Wonder they visit is the Colossus of Rhodes, where they realize that there’s way more than just their lives at stake when a mythical creature kidnaps Cass and an enemy organization, known as the Massa, threaten to get the Loculus before them.

Peter Lerangis was born in 1955, in Brooklyn. He is an American author of children and young adult fiction, best known for his Seven Wonders series and his work on the 39 Clues series.

Source:

https://en.wikipedia.org/wiki/Seven_Wonders_(series)

and

https://en.wikipedia.org/wiki/Peter_Lerangis