I am grateful to Margaret (many times over) and to all my other first readers: Kate Harvey and Starling Lawrence; Gill Coleridge and Melanie Jackson; Nicholas Blake and Kris Doyle; Stephen Roberts; and my guide to ancient Greek, Gerald Sgroi. Thanks also to Paul Baggaley, Nick Brown, Wilf Dickie, Stephen Edwards, Camilla Elworthy, Ryan Harrington, Sam Humphreys, Sophie Jonathan, Cara Jones, Laurence Laluyaux, Drake McFeely, Jenny Preston, Elizabeth Riley, Peter Straus, Isabelle Taudière and Katie Tooke, and to the following institutions: the Bibliothèque Nationale de France, the British Library, the British Museum, the Centre archéologique européen (Bibracte), Cumbria Woodlands, the Hunterian Museum (Glasgow), the Mairie de Paris, the Musée d’Archéologie méditerranéenne (Marseille), the Musée d’archéologie nationale (Saint-Germain-en-Laye), the Musée Émile Chenon (Châteaumeillant), the National Museum in Prague, the National Museum of Denmark, the National Museum of Scotland, Parc Samara, Stanfords map shop, Tullie House Museum (Carlisle), and, in Oxford, the Ashmolean Museum, the Bodleian Library, Exeter College, Linacre College, the Sackler Library, the Social Science Library, the Taylor Institution Library, the Vere Harmsworth Library and the Oxford University Parks.