Every Friday night an international group of Sisters who live on the 13th floor of an east London tower block open their doors for a community drop-in, to share both the Gospel readings for Sunday and food. “We never know who’s going to turn up,” says Sister Catherine, who has lived in the flat since 1989 – moving in after it was a drugs den, with syringes everywhere.

There are some regulars, such as a local Anglican woman vicar and Ann, a retired teacher who brings her daughter when she’s back home from her L’Arche community, as well as newcomers, like the man who recently walked across London to join them.