On Etruscan Time — Tracy Barrett

A shadow moved in the doorway of the building. It was a boy. As he hesitated, someone must have pushes him from behind. He stumbled down the short stairway and fell heavily to his knees.
He couldn't break his fall, Hector realized, because his arms were tied behind him.

A mysterious talisman transports a boy back to ancient Italy

No one ever listens to Hector. He wanted to hang out with his friends this summer, but instead he's stuck in Italy at an archaeological dig with his mom. The ancient Etruscan artifacts are interesting, but no one has time for him.

Then he makes a discovery of his own-a strange, unsettling stone that looks like an eye. The stone brings nightmares about Arath, an Etruscan boy who died thousands of years ago but now begs for Hector's help. Are these just dreams, or is Arath really in danger? As Hector unearths the truth, he realizes that he can make himself heard when it counts.