Gadget hero

When Luke and Sophie are school-newspaper reporters at a Gadget Fair, they notice small signs in strange spots around the building saying "Thanks Hero," and they set out to find out who is behind the signs.

Picture Window Books
2006
9781404813496
book
Lexile: 
790

Holdings

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1699765531281517844239873216Barclay116BPBA016029FIC THO100015825759371662467957
2008323558912822274239873216GRLS241GRLS013346FIC THO100015825759371709307855
30979486544852156242398732168394T 807469FIC THO100016407292551640729255
333713367295681583423987321650251T 5002278FIC THO100016407292551640729255