Walking along leisurely I made my way down to the shore. At a bridge that crossed a rather turbulent stream as it tumbled its way toward the sea, I paused and looked at the water reflectively.

Suddenly my vagrant interest was aroused. Up the stream I saw some one struggling in the water and shouting for help as the current carried her along, screaming.

It was Elaine. The hat and mustache of her disguise were gone and her beautiful Titian hair was spread out on the water as it carried her now this way, now that, while she struck out with all her strength to keep afloat. I did not stop to think how or why she was there. I swung over the bridge rail, stripping off my coat, ready to dive. On she came with the swift current to the bridge. As she approached I dived. It was not a minute too soon. In her struggles she had become thoroughly exhausted. She was a good swimmer but the fight with nature was unequal.

I reached her in a second or so and took her hand. Half pulling, half shoving her, I struck out for the shore. We managed to make it together where the current was not quite so strong and climbed safely up a rock.

Elaine sank down, choking and gasping, not unconscious but pretty much all in and exhausted. I looked at her in amazement. She was the tough character I had just seen.

"Why, where in the world did you get those togs?" I queried.

"Never mind my clothes, Walter," she gasped. "Take me home for some dry ones. I have a clue."

She rose, determined to shake off the effects of her recent plunge and went toward the house. As I helped her she related breathlessly what she has just seen.

Meanwhile, back of that wall of water, the wireless operator in the cave was sending the messages which Del Mar's emissary dictated to him, one after another.

. . . . . . .