Star of Stone

In the second installment of the Century Quartet, Italian author P. D. Baccalario continues the mystery that will take four cities and four extraordinary kids to solve.
NEW YORK CITY, MARCH 15
Another mysterious artifact reunites Harvey from New York, Elettra from Rome, Mistral from Paris, and Sheng from Shanghai. Soon they discover a series of four postcards written in code years ago by the murdered professor who sent them on their quest in Rome. The cards send the kids all over New York City, through old libraries and abandoned tunnels, in search of the Star of Stone, an ancient object fundamentally connected to the earth. But a new set of villains, predators of Manhattan nightlife, will do anything to stop them . . .
Fans of Blue Balliet, Trenton Lee Stewart, and Michael Scott will be drawn to this "Da Vinci Code"-like adventure for kids.