At eight o'clock, we began setting up the school hall for the second-hand book sale. Most boxes were labelled only ‘donations’, so we had to unpack them all before separating novels from reference books. The bundle of price stickers had been left in the library. Two folding tables had bowed in storage, causing neat piles to slide towards the floor. We had already arranged the remaining tables in rows when the caretaker told us that the central aisle must be widened for wheelchair users.