Riley, Clifford.

Operation Trinity / Clifford Riley. - New York : Scholastic, c2012. - 142 p. ; 20 cm. - The 39 clues. Cahill Files bk. 1. .

Chronicles the first Vesper attack on Jan van Eyck's altarpiece at Ghent in the 1600's, then jumps to WWII and young Grace Cahill's desperate bid to save the masterwork from the Nazis.

ISBN: 9780545431439

Subjects--Topical Terms:
Orphans
Brothers and sisters
Nazis
Altarpieces
Good and evil
Adventure stories.
Children's literature

Dewey Class. No.: [Fic]