"A sentimentalist, too," I muttered to myself, the surprise of that revelation checking for a few moments the rising tide of my absinthe-hunger.

Allen led the way back to where a flat ledge of rock made a rough natural seat. "'Lady Macquarie's Chair,'" he explained, motioning me to sit down. "Named from the wife of a former Governor who was supposed to slip away out here and enjoy the view. The Domain runs right back behind the Government House, you know. I always used to mooch along out here for a look-see every time I got a chance, partly for the fine prospect of the Bay and partly for the comprehensive visualization it permitted of what I might call 'The Rise and Fall of the House of Allen.'

"Haven't you an expression in the States to the effect that it's 'three generations from shirt-sleeves to shirt-sleeves'? Well, here in Australia we put the same natural law of evolution in the form of a conundrum and answer. It goes: 'How long does it take for an arrow to become a boomerang?' The answer varies, but for the 'House of Allen' it is: 'Four generations.'

"The arrow, you understand, is the 'Broad Arrow' that marked the transported convicts, while the boomerang merely suggests something that rises, circles and returns to the point of departure. Well, from this place where we sit I can trace the full circle of the 'arrow-cum boomerang-cum arrow' of the Allen quiver. Look! I'll show you. Follow me closely.

"Over there," he said, pointing seaward and easterly, "are the Heads, in through which sailed the brig bearing Jim (alias 'Crab') Allen, convict, with a few hundred more of the scum of London, to the shores of Australia. That is, I've always liked to fancy my distinguished progenitor sailed in through the Heads, though it's quite possible that the brig beat around into Botany Bay direct. Now" (he pointed westerly to where the Paramatta wound out of sight between green hills) "at the end of that deep cove over there is the slaughter house where the convict's son, James Allen, dealt in hides and hoofs and horns and laid the foundation of the family fortune, the fortune that wasn't seriously dented when the convict's grandson gave a hundred thousand pounds to a drought-relief fund and drew down a Baronetcy. That big red-brick pile among the trees on Darling Point" (Allen was pointing east again) "is the mansion of the late Sir James Allen, Bart., and now owned by his eldest son, the New South Wales Agent in London. Old Sir James' second son, Hartley, was born in the south wing of that unsightly heap of red bricks.

"And here" (this time he turned and pointed south where a sharp dagger-blade of inlet plunged deep into the heart of Sydney's lowest slums) "is Wooloomooloo, where young Hartley Allen, descending from the soft refinements of Darling Point, found his level, organized his own 'push' of rock-throwing, head-smashing larrikins and completed the social circle. The cycle of metamorphosis had begun its round. I was the throwback, Whitney. Old 'Crab' Allen, the transported convict of Houndsditch, lived again in young Hartley Allen, whom most people thought of as a racing man and polo player, but who had all the natural qualifications of an out-and-out crook.

"I can trace all of my little moral obliquities, Whitney, back to old 'Crab,' and, everything considered, I think he would rate me as rather a credit to his name, whatever contempt he might have had for my comparatively law-abiding father and grandfather, to say nothing of my pillar-of-the-state elder brother. 'Crab' was transported as a consequence of his persistent disregard of his fellow townsmen's rights to their lives, wives and silver plate. I—well, I never did care much for silver plate."

All this would have been intensely interesting to me an hour earlier, but now the fervour of my longing for my "solitude à trois" (as I was wont to call my séance with the long green bottle and the glass of cracked ice) was getting beyond control. The flowing lines of the reaches of cove and inlet glowing in the slanting light of the declining sun were becoming jerky and jagged and intershot with dazzling little spurts of light like one thinks he sees after receiving a crack on the head. The evening breeze lapped clammily about my chest and I fumbled clumsily with the buttons of my coat, trying to shut out the chill.

"I ought to have been back at the hotel before this," I mumbled, getting to my feet. "You had something more to tell me, hadn't you? You can do it as we walk back. I've got to be going now."

By this time I wasn't in a state to observe things very carefully. Undoubtedly (as I've thought it over since) Allen had been stalling to gain time and screw his nerve up to advancing the plan he had in mind. This being so, it must have jarred him a bit to have me call the turn so suddenly. I don't remember whether his face showed consternation or not. The one thing I recall was the quick movement of his hand to that hump on his right hip.