“At least, she was in the tower if she sent her message from this station,” agreed Darry.

“How shall we find out—how shall we?” cried Amy, excitedly.

“If Mr. Stratford is quite sure that he sees the aerials upon that roof, then I am going to get the tower door open somehow,” declared Jessie, with her usual determination.

“It is there, Miss Jessie,” Mark assured her.

“Come on, Henrietta,” said Jessie, helping the little girl to jump down from the car. “We are going to find your Cousin Bertha if she is here.”

“You are real nice to be so int’rusted in Bertha,” said Henrietta.

“I am interested in her particularly because Daddy Norwood needs her,” admitted the older girl. “Come on now, honey. We’ll go up to that tower building and you shout for Bertha just as hard as you can shout. She will know your voice if she doesn’t know you in your new dress,” and she smiled down at the little girl clinging to her hand.

CHAPTER XXV
JUST IN TIME

It seemed as though if there really was anybody left in charge of the Gandy house and premises, such a caretaker would have appeared before this to demand of the party of young folks from Roselawn what they wanted. As Jessie Norwood walked up the lane, with little Henrietta by the hand and followed by Darrington Drew, she saw no person at any window or door.

The tower might have been abandoned years before, as far as appearance went. But Mark Stratford’s discovery seemed to make it plain that the tower was sometimes in use.