“Walls are too thick,” she announced. “I could hear three voices though. Two were men and the other, a woman.”

“Then Mrs. Deline must be here. The keeper lied about that part.”

Presently the girls heard footsteps again on the iron stairway. They moved to the window, hoping to see whomever was descending from the room above. However, the little round aperture was so situated that it gave a view of only one side of the Point. They could not see the stairway nor the stretch of beach leading to the hotel.

“We’re certainly learning a lot!” Louise said crossly. “I’ve had enough of this. Let’s shout for help.”

“All right,” Penny agreed. “We may as well find out whether or not we’re prisoners.”

Crossing to the heavy oak door, she pounded hard on the panels. Almost at once the girls heard someone coming.

“Don’t let on what we suspect,” Penny warned her companion.

The next moment the door swung open to admit the keeper of the light.

CHAPTER
19
A LOCKED DOOR

“I was gone a little longer than I meant to be,” Jim McCoy apologized as he came into the room. “Did I keep you waiting?”