Both boats’ crews sat up as one man.

“Where away?”

“Sou’-east.”

Ortho’s eyes bored into the hollow murk seawards, but could distinguish nothing for the moment. Then, as he stared, it seemed to him that the dark smudge that was the corner of the Carn was expanding westwards. It stretched and stretched until, finally, a piece detached itself altogether and he knew it was a big cutter creeping close inshore under full sail. Never a wink of light did the stranger show.

“Hast lantern ready?” hissed Jacky’s George.

“Aye,” from Anson.

“Cast off there, hoist killick and stand by.”

“Aye, aye!”

The blur that was the cutter crept on, silent as a shadow, almost indistinguishable against the further dark, a black moth on black velvet. All eyes watched her. Suddenly a green light glowed amidships, stabbing the inky waters with an emerald dagger, glowed steadily, blinked out, glowed again and vanished. Ortho felt his heart bound into his throat.

“Now,” snapped Jacky’s George. “Show lantern . . . four times, remember.”