Fredericka next followed the fence as it continued along the alley and was broken by the gate which was the entrance for the back path to the house. About twenty yards beyond the gate she came to an unexpected gap in the fence where the wires had been pressed back and an entrance forced. At this point the shrubbery was especially dense so that the spot was quite hidden. But who would want to force an entrance here when the gate was always open? She looked at the gap carefully and saw that the bent wires were rusted. It was not a recent break then. Some child’s prank perhaps.
As she pushed her way on through the shrubbery she came suddenly on another building which she had never seen before. It was evidently an old greenhouse with large leaded panes of broken glass over half the roof and o
