CHAPTER 1In the dusk of the evening the rower brought his skiff under the overshadowing hull of the Baltic steamer and rested on his oars, the little boat rising and falling gently in the swell of the river. A grimy second officer looked down from the open porthole and spat thoughtfully into the water. Apparently he did not see the swarthy-faced waterman with the tuft of grey beard, and as apparently the waterman was oblivious of his appearance. Presently the unshaven man, with the faded gold band on the wrist of his shabby jacket, drew in his head and shoulders and disappeared.
A few seconds later a square wooden case was heaved through the port and fell with a splash in the water. For a moment one sharp corner was in sight, then it sank slowly beneath the yellow flood. A small black buo
