“Don’t forget the picnic,” the girls were reminded by Dave as he said goodbye. “We can decide upon the date and the place later on.”

“We will watch for your message,” assured Kitty.

“A summer without a picnic wouldn’t be a summer at all,” sang Doris, as the two girls waved goodbye and opened the back gate.

CHAPTER XVII
A DOG’S DISCOVERY

Doris and Kitty did not spend a comfortable night. Since the ruby ring had been given into their keeping, they found themselves unable to sleep as soundly as before and the slightest noise caused them uneasiness.

Retiring early as was their custom since coming to Locked Gates, they dropped off almost at once, but some time after midnight they were suddenly awakened by a wild cry. To the frightened girls it sounded strangely like some one in distress.

“This house gets more creepy all the time,” Kitty whispered shakily. “That couldn’t have been the wind.”

“No,” Doris agreed, “it sounded like a human voice to me. I wish we weren’t alone in this wing.”

After that they lay awake for several hours, but the cry was not repeated. Finally they fell asleep again, and when they opened their eyes the morning sun was shining brightly in at the windows.

Somewhat ashamed of their fears, now that it was broad daylight, the girls did not mention the subject at the breakfast table. Azalea and Iris appeared more cheerful than on the previous day and Doris was glad to see that they were both wearing blue dresses, a sign that they had partially forgotten their disagreement.