May and Snowy stumble down forever, brazenly displaying their bare arses to each new extinction as they pass among its signs and markers. Soon there are no sylvan octopi or flickering hyper-squids, no séance-rapping crabs or pond-sized hoofmarks left by grounded whales. Above, the crumpled-paper diagrams of cloud seem scarcer and when visible less complex, having fewer folds and facets. The old man surmises that the world downstairs is drying, dying, and they travel on through the gigantic thinning trees, the great majority of which are dead with some entirely petrified. In their decade-devouring canter they devise a means of eating without pausing: the uncanny toddler intermittently retrieves one of the puzzling vintage Puck’s Hats from the inexplicably full wolf-bag that she bounces on, handing it with great ceremony down to her grandfather who ingests it as he runs, noisily spitting eyes and pubic fur-balls into the deteriorated woodland mulch beneath his slapping feet. While they don’t have their mouths full they discuss the lingering enigma of their restocked rations without ever reaching a conclusion that’s remotely credible. When Snowy ventures the hypothesis that possibly the amiable crustaceans back along the time-track are responsible for this display of clandestine benevolence, May counters with a theory that it is in fact their own selves from some juncture of the future who are their true benefactors. Both proposals founder on the issue of the fungi’s blatantly anachronistic provenance, and meanwhile there’s less vegetation to be seen with each fresh furlong. Far away to either side the walls of the protracted thoroughfare can once more be discerned, their shifting dream-veneer fallen away or atrophied for want of anything still capable of dreaming in the territories beneath. Without their astral substance being constantly renewed and reinvigorated by an influx of novel imaginings, the distant boundaries can no longer recall the shapes or colours that were previously their own, the contours softening and gradually subsiding into waxy incoherence, hue a runny paint-box marbling with the greasy fever-sheen of rain-stained petrol, sacred architecture lapsing into a prismatic slobber. Past those faltering margins there are only the confounding depths of an expanded firmament as realised in more than three dimensions, intimating that beyond the Attics of the Breath the further reaches of Mansoul themselves are levelled. Like some hybrid chimera of age and youth, a generational centaur, May and Snowy gallop onward through what seems to be a final curtain falling on biology. Running pink caterpillar fingers idly through the locks of her gerontic charger as though grooming him for nits, the sombre cherub muses on the fragile existential nature of a world completely unobserved while all around them the last oaks and eucalyptuses are toppling unnoticed into history. At intervals of a duration lengthier than empires the pair pause in their apocalyptic marathon, to snooze after their fashion under lean-tos made from sloughed-off bark or dine on their diminishing supply of Bedlam Jennies. It is after breaking camp on one of these occasions and making the relatively short walk to the morning following, when they’ve long given up on the idea of sapient life in the terrestrial neighbourhood beneath them, that they come across the first of the peculiarly geometric mineral cacti. A three-sided pyramid as tall as Snowy, an elaborate beige stud erupting from the shrivelled moss and kindling litter carpeting the great emporium, each of its smoothly manufactured faces has a further half-sized pyramid projecting from it. These in turn sprout similarly scaled-down reproductions of the central form, and so on to the limits of perceptibility. The overall impression is that of a Cubist Christmas-tree sculpted from sand or some fine-grained equivalent, spiky and in its own way beautiful. The infant and her bronco ancestor trot in a slow investigative circle, orbiting the startlingly precise extrusion at a cautious radius and speculating on the nature of its composition. After some few circuits Snowy kneels so that May can dismount in order to inspect this strange apparent artefact at closer quarters. Waddling barefoot on a rug of desiccated splinters the deceased toddler approaches the suspiciously well-engineered phenomenon with the intrepid curiosity characteristic of the age at which death has arrested her development. She pokes a small exploratory bore-hole in the unexpectedly yielding and permeable exterior of the oddity, and attempts a preliminary analysis of its constituent matter by the straightforward expedient of putting some into her mouth. After an apprehensive period of mute consideration the unnerving paediatric sibyl turns with wonderment to her intrigued grandparent and announces “It’s an anthill.” Stepping closer to the enigmatic polyhedral solid, the gaunt patriarch sees for himself the colony’s immediately despatched repairmen skittering like beads of ink as they efficiently patch up the damage caused by May’s intrusive digit. Having no desire to further inconvenience the first-recorded insect presence to have been discovered on that upstairs tier of existence, the baby remounts her famously deranged and silver-crested relative and they continue with their world’s end picaresque. There is still evidence that life prevails. Snowy thinks back to when