"Then below you go, Dr. Rodiek. And don't get impatient: I will rejoin you as soon as possible."
"Don't be long," Lanyard implored.
As he lowered himself through the hatch he saw the Prussian stumble down the gangplank and reel shoreward.
Well satisfied with his diplomacy, Lanyard lingered a while in the conning tower, closely studying and memorising the more salient features of the Island of Martha's Vineyard and its adjacent waters and mainland as delineated on a most comprehensive large-scale chart published by the German Admiralty from exhaustive soundings and surveys of its own navigators and typographers, with corrections of as recent date as the first part of the year 1917.
Here the breach in the south coast line which permitted the utilisation of what had formerly been an extensive fresh-water pond as this secret submarine base, was clearly shown. And a single glance confirmed the lieutenant's statement concerning its remote isolation from settled sections of the island.
Somewhat dismayed, Lanyard descended to the central operating compartment and scouted through the hold from bow bulkhead to stern, making certain he enjoyed undisputed privacy. And it was so; every man-jack of the U-boat's personnel—jaded to the marrow with its cramped accommodations, unremitting toil and care, unsanitary smells and forbidding associations—having naturally seized the earliest opportunity to escape so loathsome a prison.
Lanyard, however, was anything but resentful of condemnation to this solitary confinement. His interest in the interior arrangements of submersibles seemed all but feverish, as intense as sudden; witness the minute attention to detail which marked his second tour of inspection. On this round he took his time. He had all night in which to work out his salvation; the wildest schemes were revolving in his mind, the least fantastic utterly impracticable without accurate knowledge of many matters; and such knowledge might be gained only through patient investigation and ungrudging expenditure of time.
It was now something past ten by the chronometers. He could hardly do much before dawn, lacking the instinct of a red Indian to guide him through that night-bound waste of woodland. So he felt little need to slight his researches through haste, except in anticipation of his lieutenant's return. And as to that, Lanyard was moderately incredulous: he expected to see nothing more of this new-found friend, unless the infatuation of the Prussian proved far stronger than his head.
Turning first to the private quarters of the commander, a somewhat more commodious cubicle than that across the alleyway in which Lanyard had been berthed, his interest was attracted by a small safe anchored to the deck beneath the desk.
To this Lanyard addressed himself without hesitation, solving the secret of its combination readily through exercise of the most rudimentary of professional principles. The problem it offered, indeed, was child's play to such cunning of touch and hearing as had made the reputation of the Lone Wolf.