Spine and corners bumped.
Bunkle, Robin and Jill help their father, who is in the British Secret Service, to round up a German spy in Devonshire. The story begins with Bunkle throwing a cushion at an old lady, and the cushion bursts. Later, Bunkle sees some very curious things through a crack in the floor of his attic bedroom.
This is the second in the Bunkle series and our irrepressible hero is back to solve more mysteries!