Children of Memory

Children of Memory is a novel in Adrian Tchaikovsky's Children of Time series, which traces the development of a multispecies interstellar civilization including uplifted Portiid spiders, Octopuses, Nodan organisms (parasitic microbial life forms from the planet Nod), and Humans (capital H, denoting those uplifted by the Portiid nanovirus). An ancient AI named Avrana Kern, originally a human terraformer who preserved herself as a digital intelligence, serves as a connective thread across the series.

The novel opens aboard the Enkidu, an ark ship that has traveled 2,600 years from Earth carrying tens of thousands of colonists in suspension. Captain Heorest Holt wakes during deceleration into the Imir star system and discovers that a structural fracture has killed over 11,000 colonists in their pods. Working with his senior officers, Holt sacrifices most of the subsidiary fleet to hold the ark together, but another 1,700 colonists die before the ship achieves stable orbit around Imir, a planet with breathable atmosphere but no usable ecosystem. Science second Dastin Gembel devises a minimal plan to sustain a small colony using the ship's genetic library, while classicist Esi Arbandir detects faint, clearly artificial signals from the surface that match nothing in their databases. Holt chooses to settle near the signal source, gambling that whatever lies buried in the hills might offer more than bare subsistence.

The narrative shifts to a later era, introducing Liff, a girl of about thirteen by Earth reckoning who lives near the colony of Landfall. One night, she sees her grandfather Holt walking toward the treeline, though the timeline makes this impossible. At school, a new teacher named Miranda arrives from an out-farm, a remote settlement beyond Landfall, and teaches history, science, and ecology, subjects the established families consider suspect. Liff ventures into the dying forest searching for her grandfather and encounters Gothi and Gethli, two crow-like beings affiliated with the alien survey operation, who appear to Liff both as large black birds and as sharp-featured humans in dark coats. They guide her home, then take flight and vanish. The colony is permeated by anxieties: belief in Seccers (an unseen rival community), dread of the Watchers (associated with the Enkidu orbiting overhead), and whispered stories of a Witch in the hills.

Miranda's perspective reveals that she and her companions are covert observers from the multispecies civilization. Miranda is an Interlocutor, a Nodan organism that copies and inhabits the personalities of willing hosts; she currently mimics the identity of a Human woman who voluntarily donated her personality to the entity. Her team includes Fabian, a gifted mechanic; Portia, a formidable hunter; and Paul, a mute artist accompanied by his brood of industrious children. All pose as refugees from failed out-farms, and their ship, the Skipper, hides behind Imir's moon. The team debates how to help the failing colony: Miranda wants to preserve its culture, while Portia argues that saving the people necessarily means destroying what makes them who they are.

A parallel narrative recounts how the Skipper crew first encountered the Corvids, intelligent crow-like beings, on the planet Rourke. A human terraforming team led by Renee Pepper had perished there centuries earlier, but the crows survived on the toxic world. Each bonded pair developed a split-brain phenotype: one bird obsessively catalogues patterns while the other solves problems and draws conclusions, forming a composite intelligence. Two Corvid ambassadors, Gothi and Gethli, join the crew. Miranda serves as Interlocutor, attempting to determine whether the birds are truly sentient, a question the novel never resolves.

Using records from Rourke, the Skipper sets course for a previously unlisted world and discovers it is Imir, with the Enkidu already in orbit. The Corvids isolate two distinct transmissions from the surface: one from a small human settlement, and another that is entirely alien. An investigation of the Enkidu reveals that nearly all suspension pods remain occupied; the vast majority of colonists were never woken, a discovery difficult to reconcile with the colony below.

On the surface, Liff's uncle Molder channels communal fear toward outsiders as food stores dwindle. Liff visits the Witch, guided by Gothi and Gethli into the hills, and finds Kern in her cave. Kern demands that Liff bring Miranda and the others so she can "summon a ghost." Liff refuses and escapes by throwing grain on Kern's polished stone mirror; Gothi compulsively stops to catalogue the kernels.

The narrative presents mutually exclusive versions of events: Liff remembers her parents alive and dead, her grandfather present and long gone, Miranda newly arrived and long established. These contradictions accumulate rather than resolve. Miranda proposes an infiltration mission, descending alone to the planet while a copy of herself remains aboard the Skipper. She integrates into the community as a teacher, but an alien simulation engine buried beneath the hills reads her consciousness, copies it, and absorbs her into its ongoing simulation. Her physical Nodan body, severed from the Miranda persona, devours its own human host and is lost.

The crisis peaks when Kern, also absorbed into the simulation as the Witch, unleashes the simulation's chaotic energies. Figures of mud and dead plant matter rise from the earth: crude golems bearing the faces of personalities stored within Miranda's Nodan substrate. Miranda collapses, recognizing them as evidence of her parasitic nature. Liff confronts Kern, refusing to help unless Kern stops hurting Miranda, and walks into the night.

In the climactic sequence, Liff cooperates with a massed Corvid consciousness to sort the contradictory timelines. She identifies Miranda, Fabian, Portia, and Paul as elements that do not belong, allowing them to be extracted. Kern then reveals the truth: The Urshanabi, the shuttle carrying colonists to the surface, crashed during atmospheric entry, killing everyone aboard. The simulation engine captured the colonists' data and modeled what would have happened if they survived. The colony of Landfall was never real. It was a thought experiment run by an ancient alien machine, looping from Holt's landing to Liff's solitary death and back again. When Miranda and a copy of Kern later descend to Imir's actual surface, they find no trace of Landfall, only a deeply buried crash site.

Miranda argues before the assembled fleet that the simulated people possess genuine consciousness, drawing parallels to her own existence as a copied identity and to Kern's nature as a replicated AI. The Corvids suggest that the simulation itself may constitute an emergent consciousness, akin to the "Wolf" that Liff always sensed prowling at the edges of Landfall. After prolonged debate, Miranda wins support for extracting Liff, the simulation's final recurring inhabitant, and giving her a physical body. The original Miranda, now aged, visits her copy and expresses pride in what the copy has become.

Miranda re-enters the simulation and finds Liff starving and alone in the ruins. She offers food and help, and Liff takes her hand. After recovery and acculturation, Liff joins Miranda's crew as a citizen of the interstellar civilization. Before departing Imir, Miranda and Liff return to the simulation one final time. Liff reaches out to the darkness beneath the trees, the emergent consciousness she always sensed as the Wolf, and something approaches from within. The novel ends at the threshold of first contact with an alien intelligence that arose spontaneously from the simulation's own complexity.