Jonathan Tulloch (“Glimpses of Eden”, 27 September) refers to the Hardy tree, with its pile of tombstones displaced by the railway works, in Old St Pancras churchyard, as “perhaps … Thomas Hardy’s greatest poem, and he didn’t even write it – at least not with a pen”. But Hardy, who worked as an architect on the enterprise, did write a darkly humorous poem about this spot called “The Levelled Churchyard”, in which he imagines the dead complaining of being uprooted and being jumbled all together so that they lose their identities.The penultimate stanza reads: “Here’s not a modest maiden elf / But dreads the final Trumpet, / Lest half of her should rise herself, /And half some sturdy strumpet”.John Gilroy, Cambrid