Autumn is the third entry in a series commissioning British authors to write about their home landscapes through a seasonal lens — Morpurgo on Devon in spring, McDermid on Scotland in winter, Evaristo on summer still to come. Mosse, who has spent nearly all of her 65 years in Sussex, is the obvious fit for autumn. The form is essayistic memoir: personal memory layered over landscape history, folklore, and literary association, with no pretence at narrative tension. The book's spine is a single argument: that the link between tradition and the natural world, still alive in Granny Rosie's youth, is now mostly memory, and that paying attention to it — really paying attention — is a form of gratitude. Mosse makes this case not through polemic but through accumulation. Oaks as road signs. Romans calling wild cyclamen 'earth truffle.' The Lewes Bonfire Night. A first day of school on 1 September, sixty years ago: 'Four, rising five.' The literary history sections are the book's most surprising pleasure. Blake drafted Jerusalem in Felpham, was tried in Chichester for sedition after throwing a soldier out of his garden, was acquitted, and never returned to Sussex. Keats was inspired by Chichester's architecture to write The Eve of St Agnes. Joyce wrote Finnegans Wake in Bognor Regis. And Kipling — whom Mosse calls 'the great Sussex writer,' a phrase she must know will read differently in India — wrote Kim there, then Just So Stories, then in 1906 set Puck of Pook's Hill in the village of Burwash. Mosse is self-aware enough to acknowledge the guidebook tendency in her own telling, and the acknowledgment does some work — it signals that she knows the register she's in. The personal passages earn their keep precisely because they're not performing depth: the detail of revising for A-levels 'in the shadow of the Bishop's Palace,' the Sloe Fair birthday, the 40th birthday with children at the same fair twenty-three years later. These are the book's real argument — that place holds time the way nothing else does. The honest criticism is that the form does most of the heavy lifting. Mosse is a generous, warm writer, and she takes obvious, infectious delight in her material. But the book doesn't push against its own premise or find the friction in Sussex nostalgia — the supermarket standing where Granny Rosie watched cattle is mentioned once and dropped. For a book about transition, it's more comfortable than searching. That's not a flaw exactly; it's a choice about what kind of book this wants to be.