“We’ll stay a week, if all goes well,” said Mr. Temple. “Of course, if my business engagements take up too much of my time we might stay a day or two longer, as there are some points of interest I intend to visit while here. I’ve been in San Francisco before, but, for one thing, I’ve never gone to the top of Mt. Tamalpais, across the Bay in the Marin County peninsula. I want to make that trip. I suppose,” he added, with a smile, “you won’t object if I am forced to stay more than a week.”

“Oh, yes,” said Jack laughing, “we’ll be awfully put out. We don’t want to see a thing.”

Suddenly Frank pushed back his chair and with an incoherent cry started to dart away. Bob seized him by the coat. Frank writhed in his grasp and attempted to twist free. He was highly excited.

“Hold on,” said Bob. “What’s the matter?”

Then Frank managed to obtain sufficent control of his voice to explain.

“Let me go,” he demanded. “I saw that man who was on the train—the fellow who was explaining the smuggling plot.”

“Where, where?” demanded Bob, also gaining his feet.

“He was breakfasting over there,” said Frank, pointing to a table near the exit. “I caught just a glimpse of him. I think he was watching us. Come on.”

Turning, he darted off with Bob at his heels.

“Don’t leave the hotel,” called Mr. Temple, sharply. “People are watching us.”