Del Mar was hard at work in the library when, suddenly, he heard a sound at the panel. He reached over and pressed a button on his desk, and the panel opened. Through it came the diver still wearing his dripping suit and carrying the weird helmet under his arm.
"That Dodge girl has crossed us again!" he exclaimed excitedly.
"How?" demanded Del Mar, with an oath.
"I saw her on the rocks just now. She happened to stumble on the bomb which you left there to be placed."
"And then?" demanded Del Mar.
"She took it with her in her car."
"The deuce!" ejaculated the foreign agent, furiously. "You must get the men out and hunt the country thoroughly. She must not escape now at any cost."
The diving man dove back into the panel to escape Del Mar's wrath, while Del Mar hurried out, leaving his valet in the library.
Quickly, Del Mar made his way to a secret hiding-place in the hills back of the bay. There he found his picked band of men armed with rifles.
As briefly as he could he told them of what had happened. "We must get her this time—dead or alive," he ordered. "Now scatter about the country. Keep in touch with each other and when you find her, close in on her at any cost."