Interest Level:
6-8
Lexile Framework:
870L
Grade Level Equivalent:
5.6
Guided Reading Level:
S
Age:
11-13
Genre:
Mystery and Suspense
Subject:
Architecture, Friends and Friendship, Codes, Messages, Signs
Spring semester at the Lab School in Hyde Park finds Petra and Calder drawn into another mystery when unexplainable accidents and ghostly happenings throw a spotlight on Frank Lloyd Wright's Robie House, and it's up to the two junior sleuths to piece together the clues.
Stir in the return of Calder's friend Tommy (which creates a tense triangle), H.G. Wells's The Invisible Man, 3D pentominoes, and the hunt for a coded message left behind by Wright, and the kids become tangled in a dangerous web in which life and art intermingle with death, deception, and surprise.


