a minute gazing at his toes with a cogitative frown and then looked up at Thorndyke.
"I have an idea," he said. "From what you say, this matter wants looking into pretty carefully. Now, I am going down on the tender to-day to make inquiries on the spot. What do you say to coming with me as adviser—as a matter of business, of course—you and Dr. Jervis? I shall start about eleven; we shall be at the lighthouse by three o'clock, and you can get back to town to-night, if you want to. What do you say?"
"There's nothing to hinder us," I put in eagerly, for even at Bugsby's Hole the river looked very alluring on this summer morning.
"Very well," said Thorndyke, "we will come. Jervis is evidently hankering for a sea-trip, and so am I, for that matter."
"It's a business engagement, you know," the captain stipulated.
"Nothing of the kind," said Thorndyke; "it's unmitigated pleasure; the pleasure of the voyage and your high well-born society."
"I didn't mean that," grumbled the captain, "but, if you are coming as guests, send your man for your night-gear and let us bring you back to-morrow evening."
"We won't disturb Polton," said my colleague; "we can take the train from Blackwall and fetch
