Margaret was the hub. Everyone in the East End knew her, even the people who did not know that they knew her, because in the network of relationships that held the small community of Stepney together, Margaret occupied the central node, the person through whom information flowed and favors were exchanged and problems were solved, not because she wanted to be central -- she did not, she preferred the margins where she could see everything without being seen -- but because she was competent and accessible and remembered names, and in a neighborhood where everyone had a name and everyone's name was known to everyone else, remembering was a form of power that Margaret wielded without announcement and without arrogance.

She was fifty-two years old, a former dockworker whose hands were still rough from thirty years of loading and unloading cargo from ships that had long since been replaced by container vessels and whose knowledge of the East End extended six miles in every direction and penetrated six social layers deep, from the council flat on Commercial Street where she lived alone since her husband died of lung cancer in 1983 to the Georgian townhouse on Glouceck Road where a Lebanese diplomat lived with his family and sent his daughter to the state school on Leman Street where Margaret's niece worked as a teaching assistant, a network of connections that Margaret maintained with the quiet consistency of someone who understood that a community is not a collection of individuals but a structure of relationships, and when one relationship broke, the stress distributed itself through the network like a vibration through a truss bridge, finding the weak points and concentrating there until the structure either adapted or collapsed.

The five perspectives belonged to five people who knew Margaret and whose lives intersected with hers at different points in the network, and when Margaret broke the network -- not deliberately, not even noticeably, but through a gradual withdrawal that began in March 1985 and was complete by October, when she stopped answering her door and stopped coming to the community center on a Tuesday morning and stopped being the hub through whom everything flowed -- the five people experienced the loss in five different ways that, when assembled like a puzzle, produced a picture of a woman whose centrality had been invisible to everyone, including herself, until it was gone.

Perspective One: Denise, twenty-three, council flat on Commercial Street. Denise was a single mother who worked at a bakery on Whitechapel Road and brought home stale bread that she fed to her son as a lesson in frugality that the boy accepted with the philosophical resignation of children who understand, before they can articulate the understanding, that their mother's love is real even when her resources are not. Denise knew Margaret because Margaret had found her a babysitter when the regular one got sick, a babysitter who was Denise's cousin's neighbor's daughter, a connection that Margaret had made by remembering that the cousin's neighbor had a daughter who was available on Wednesday afternoons and liked children, and in the network of the East End, finding a babysitter was not a trivial favor, it was the difference between keeping a job and losing one, and Margaret had made the connection and Denise had understood, briefly, that the world was connected in ways she could not see but could feel in the small moments when someone remembered your name and your circumstances and acted on that knowledge without being asked. When Margaret stopped coming to the community center, Denise noticed after two weeks because the babysitter chain had broken -- the cousin's neighbor's daughter had moved to Leicester, and Margaret was no longer there to remember the daughter's phone number and call her and discover the move and find a replacement, and Denise was late to work on a Thursday because she had no one to watch her son, and the baker, a good man who tolerated lateness from Denise because her bread was good, said something about reliability that Denise accepted without argument because she knew, in the way you know something without being told it, that Margaret had been the reason she was reliable and without Margaret, the network was just a collection of isolated individuals, each one alone, each one struggling, each one one broken connection from disaster.

Perspective Two: Mr. Abassi, Lebanese diplomat, Gloucester Road. Mr. Abassi knew Margaret through his daughter, who was friends with Denise's son, a friendship that existed in the way children's friendships exist: unstructured, spontaneous, sustained by the shared activity of being ten years old in a city that provided few spaces where children could be unstructured and spontaneous without adult supervision. Mr. Abassi knew Margaret because his daughter told him about her, about the woman at the community center who remembered everyone's birthday and could recommend a plumber and a therapist and a good lawyer and knew, in October, when the leaves were falling and the light was turning gold and the diplomatic community in London was nervous about the fallout from the invasion of Grenada, to leave a box of apples from the Abassi family's orchard in Lebanon on Margaret's doorstep, a gesture of gratitude that Margaret accepted with a nod and a thank you and no understanding of why a diplomat was giving her apples, and when the apples stopped coming, Mr. Abassi noticed because his daughter asked him whether Margaret was sick, and his daughter, who did not understand adult networks, understood intuitively that Margaret was the person who made the community work, the invisible force that held the social gravity of Stepney together, and without her gravity, the planets of the community drifted apart, each one following its own orbit, each one lonelier.

Perspective Three: Father O'Brien, St. Paul's Church, Commercial Street. Father O'Brien knew Margaret because she sat in the third pew on Christmas Eve and Easter Sunday and served on the church's food committee and organized the annual fête in the church garden, a event that attracted three hundred people from across the East End and required, Father O'Brien estimated in a sermon he never delivered because the fête was canceled when Margaret withdrew, the coordination of forty volunteers, twelve food stalls, five entertainment acts, and a contingent of dockworkers from the West India Quay who provided a bouncy castle for the children that they operated with the enthusiastic incompetence of men who were better at loading cargo than inflating plastic castles, and when Margaret stopped organizing, the fête became a collection of individual activities: the food committee cooked without coordinating menus, the volunteers showed up without knowing what they were volunteering for, the bouncy castle arrived without operators, and the three hundred people who came to the church garden on a June Sunday realized, as they stood in the sunshine eating mismatched food and watching their children bounce on an uninflated castle operated by men who had forgotten how to plug it in, that the community was not the people but the connections between the people, and when the hub broke, the connections dissolved, and what remained was just a lot of people in a garden, which is not a community, it is a crowd, and a crowd does not fête.

Perspective Four: Yvonne, forty-five, Leman Street. Yvonne was a teacher at the state school where Margaret's niece worked, and she knew Margaret through the niece, who was Yvonne's friend, and Yvonne knew Margaret because Margaret came to the school every September for the open day and every July for the end-of-year celebration and every time she came, she brought something: a cake baked from a recipe her husband had liked, a photograph of the dock from 1957 when she was still working and the ships were still sailing and the East End was still a place where cargo was moved by human hands and the men who moved it sang songs that Yvonne's father had sung and Yvonne's father's father had sung before him, a song that connected Margaret to her husband to her father-in-law to his father to the dockworkers of 1920 and the dockworkers of 1890 and the dockworkers of 1850, a chain of songs and hands and cargo that Yvonne heard once and recognized as something older than the network and older than the community and older than the East End itself, as if Margaret, at the center of her web of relationships, was also the node where the present connected to the past, where the people who were and the people who are and the people who will be were all part of the same structure, and when the singing stopped, when Margaret stopped coming to the school, Yvonne felt the loss not as the absence of a cake or a photograph or a song but as the loss of a dimension, as if the community had lost its depth and become flat, two-dimensional, a collection of points on a page instead of a living structure that grew and changed and connected across time as well as space.

Perspective Five: The Network Itself. The network did not have a voice. It was not a person. It was the structure of relationships that Margaret had occupied at its center, and when she withdrew, the structure experienced a stress distribution that traveled through every connection, every favor, every remembered name and every delivered introduction and every solved problem, and the stress concentrated at the weak points: Denise, who lost her babysitter and was late to work and almost lost her job. Mr. Abassi, whose daughter stopped asking about Margaret and stopped going to the community center and stopped understanding why her mother said that the woman who made everything work had disappeared. Father O'Brien, who canceled the fête and realized that a crowd is not a community. Yvonne, who taught at the school and missed the song. And the network, which is not a person but is real, which exists in the space between people and persists across generations and carries the songs of dockworkers and the names of babies and the recipes of cakes and the photographs of docks and the phone numbers of babysitters and all of it, every connection, every node, every edge, dissolving into silence when the hub stops turning and the vibration that held the structure together fades and the people who remain in the East End on a November morning in 1985 stand on their streets and look at each other across the distance that relationships had bridged and see, for the first time, that the bridge is gone and they are on opposite sides of it and the space between them is not a connection but an absence, and the absence has a name, and the name is Margaret, and she was the hub, and she is gone, and the five perspectives, assembled side by side like five panels of a polyptych, produce a single image: a network broken, a structure collapsed, a community that was never the people but the connections, and when the connections broke, the community became something else, something smaller and quieter and lonelier, a collection of individuals standing on opposite sides of a bridge that used to exist and no longer does, listening to the silence where the hub used to turn and the song used to rise and the pulse used to travel through the structure that held them together.