Captain Brant rubbed his chin as if weighing the feasibility of the proposition. "Well," he said, "it won't be at all convenient, but I'll stretch a point to oblige you. You don't want to see the gentleman?"

"No, so long as I can send word to him, or get a letter posted, it will be all right."

"Then I'll do that much for the sake of a quiet life."

"You'll have to, or there'll be trouble," replied the matter-of-fact young amazon, little guessing that the villainous skipper had not the slightest intention of fulfilling his promise. A naval port, bristling with warships, was the very last place the Cobra would be likely to visit after her contemplated doings at Ottermouth that night.

However, having for the time pacified his stewardess, he became civil enough and allotted her a comfortable cabin near the saloon and next to a large, luxuriously furnished state-room which he pointed out as destined for the lady passenger whom they were to call for on their way down the coast.

"By the way," he wheezed with one of his monkey-like grins as he prepared to return to the bridge, "I haven't had the honour of an introduction. It might save awkwardness if you'd kindly put a name to yourself, miss."

"Jimpson," was the reply, "Miss Nettle Jimpson, and you'll find I'm a stinging-nettle, if you don't treat me fair."

Brant bowed with a mock solemnity, the hollowness of which he scarcely troubled to conceal. "Simon Brant has tamed vixens worse than you, my lass," he muttered behind his yellow teeth as he swung himself back to his perch.

And all that lovely summer afternoon the Cobra's powerful turbine engines drove the graceful vessel through the calm waters of the sunlit sea nearer to its prey. At sundown speed was reduced in order to conform with the instructions not to arrive off Ottermouth till after dark. But when the last rose tint had faded from the western sky Brant gave orders to steam slowly round the point at the river's mouth and heave to about three miles from the shore.

"Now the fun begins," he said to Cheeseman, who was with him on the bridge. "Keep your eyes skinned for a blue light followed by a green due north of us. When we see it you'll take the electric launch and drive her to the point where the light is shown. There you'll find a passenger waiting for you. Make the launch travel like hell, for you'll have another trip later. Rat Mullins and Snobby Wilson will go with you. They're about the toughest of the crowd, but I don't figure on trouble for you. The chap that's bossing things ashore will have seen to that."