“The house is dark,” Louise said dubiously. “She’s probably in bed.”
“Wouldn’t you want to know about it if someone were prowling about your premises?”
“Yes, of course—but—”
“Then come on,” Penny urged, starting through the tangle of tall grass. “Mrs. Marborough should be very grateful for the warning. It may prevent a burglary.”
In crossing the yard, the girls kept an alert watch of the bushes but could see no one hiding behind them. Nevertheless, they felt certain that the prowler could not have left the grounds.
Penny pounded on the rear door of the Marborough house.
“Not so loud,” Louise warned nervously.
“Mrs. Marborough probably is asleep. I want to awaken her.”
“You will, don’t worry!”
Penny repeated the knock many times, and then was rewarded by the approach of footsteps. The door opened, and Mrs. Marborough, in lace night cap and flannel robe, peered suspiciously at the girls.