"I see nothing," City says uncertainly.

"Here, let me help you." Sirhan lends it one of his eyes, rolls it to focus on the ape, which is now reaching lazy arms around the hatch and patting down the roof of the capsule, as if hunting for the wires' attachment points.

"Oh dear," says City, "I've been hacked. That's not supposed to be possible."

"Well it fucking is ," hisses Pamela.

"Hacked?" Sirhan stops trying to tell the air what to do and focuses on his clothing instead. Fabric reweaves itself instantly, mapping itself into an armored airtight suit that raises a bubble visor from behind his neck and flips itself shut across his face. "City please supply my grandmama with an environment suit now. Make it completely autonomous."

The air around Pamela begins to congeal in a blossom of crystalline security, as a sphere like a giant hamster ball precipitates out around her. "If you've been hacked, the first question is, who did it," Sirhan states. "The second is 'why,' and the third is 'how.'" He edgily runs a self-test, but there's no sign of inconsistencies in his own identity matrix, and he has hot shadows sleeping lightly at scattered nodes across as distance of half a dozen light-hours. Unlike pre-posthuman Pamela, he's effectively immune to murder-simple. "If this is just a prank —"

Seconds have passed since the orang-utan got loose in the museum, and subsequent seconds have passed since City realized its bitter circumstance. Seconds are long enough for huge waves of countermeasures to sweep the surface of the lily-pad habitat. Invisibly small utility foglets are expanding and polymerizing into defenses throughout the air, trapping the thousands of itinerant passenger pigeons in midflight, and locking down every building and every person who walks the paths outside. City is self-testing its trusted computing base, starting with the most primitive secured kernel and working outward. Meanwhile Sirhan, with blood in his eye, heads for the staircase, with the vague goal of physically attacking the intruder. Pamela retreats at a fast roll, tumbling toward the safety of the mezzanine floor and a garden of fossils. "Who do you think you are, barging in and shitting on my supper?" Sirhan yells as he bounds up the stairs. "I want an explanation! Right now!"

The orang-utan finds the nearest cable and gives it a yank, setting the one-ton capsule swinging. It bares its teeth at Sirhan in a grin. "Remember me?" it asks, in a sibilant French accent.

"Remember —" Sirhan stops dead. "Tante Annette? What are you doing in that orangutan?"

"Having minor autonomic control problems." The ape grimaces wider, then bends one arm sinuously and scratches at its armpit. "I am sorry, I installed myself in the wrong order. I was only meaning to say hello and pass on a message."

"What message?" Sirhan demands. "You've upset my grandmama, and if she finds out you're here —"

"She won't; I'll be gone in a minute." The ape – Annette – sits up. "Your grandfather salutes you and says he will be visiting shortly. In the person, that is. He is very keen to meet your mother and her passengers. That is all. Have you a message for him?"

"Isn't he dead?" Sirhan asks, dazed.

"No more than I am. And I'm overdue. Good day!" The ape swings hand over hand out of the capsule, then lets go and plummets ten meters to the hard stone floor below. Its skull makes a noise like a hard-boiled egg impacting concrete.

"Oh dear," Sirhan breathes heavily. "City!"

"Yes, oh master?"

"Remove that body," he says, pointing over the balcony. "I'll trouble you not to disturb my grandmother with any details. In particular, don't tell her it was Annette. The news may upset her." The perils of having a long-lived posthuman family , he thinks; too many mad aunts in the space capsule. "If you can find a way to stop Auntie 'Nette from growing any more apes, that might be a good idea." A thought strikes him. "By the way, do you know when my grandfather is due to arrive?"

"Your grandfather?" asks City: "Isn't he dead?"

Sirhan looks over the balcony, at the blood-seeping corpse of the intruder. "Not according to his second wife's latest incarnation."

Funding the family reunion isn't going to be a problem, as Amber discovers when she receives an offer of reincarnation good for all the passengers and crew of the Field Circus.

She isn't sure quite where the money is coming from. Presumably it's some creaky financial engine designed by Dad, stirring from its bear-market bunker for the first time in decades to suck dusty syndication feeds and liquidate long-term assets held against her return. She's duly grateful – even fervently so – for the details of her own impecunious position grow more depressing the more she learns about them. Her sole asset is the Field Circus, a thirty-years-obsolete starwhisp massing less than twenty kilograms including what's left of its tattered sail, along with its cargo of uploaded passengers and crew. Without the farsighted trust fund that has suddenly chugged into life, she'd be stranded in the realm of ever-circling leptons. But now the fund has sent her its offer of incarnation, she's got a dilemma. Because one of the Field Circus's passengers has never actually had a meatspace body …

Amber finds the Slug browsing quietly in a transparent space filled with lazily waving branches that resemble violet coral fans. They're a ghost-memory of alien life, an order of thermophilic quasi fungi with hyphae ridged in actin/myosin analogues, muscular and slippery filter feeders that eat airborne unicellular organisms. The Slug itself is about two meters long and has a lacy white exoskeleton of curves and arcs that don't repeat, disturbingly similar to a Penrose tiling. Chocolate brown organs pulse slowly under the skeleton. The ground underfoot is dry but feels swampy.

Actually, the Slug is a surgical disguise. Both it and the quasi-fungal ecosystem have been extinct for millions of years, existing only as cheap stage props in an interstellar medicine show run by rogue financial instruments. The Slug itself is one such self-aware scam, probably a pyramid scheme or even an entire compressed junk bond market in heavy recession, trying to hide from its creditors by masquerading as a life-form. But there's a problem with incarnating itself down in Sirhan's habitat – the ecosystem it evolved for is a cool Venusiform, thirty atmospheres of saturated steam baked under a sky the color of hot lead streaked with yellow sulphuric acid clouds. The ground is mushy because it's melting, not because it's damp.

"You're going to have to pick another somatotype," Amber explains, laboriously rolling her interface around the red-hot coral reef like a giant soap bubble. The environmental interface is transparent and infinitely thin, a discontinuity in the physics model of the simulation space, mapping signals between the human-friendly environment on one side and the crushing, roasting hell on the other. "This one is simply not compatible with any of the supported environments where we're going."

"I am not understanding. Surely I can integrate with the available worlds of our destination?"

"Uh, things don't work that way outside cyberspace." Suddenly Amber is at a bit of a loss. "The physics model could be supported, but the energy input to do so would be prohibitive, and you would not be able to interact as easily with other physics models as we can now." She forks a ghost, demonstrates a transient other-Amber in a refrigerated tank rolling across the Slug's backyard, crushing coral and hissing and clanking noisily. "You'd be like this."

"Your reality is badly constructed, then," the Slug points out.

"It's not constructed at all, it just evolved, randomly." Amber shrugs. "We can't exercise the same level of control over the underlying embedded context that we can over this one. I can't simply magic you an interface that will let you bathe in steam at three hundred degrees."