Henry Gee writes: Just a reminder that I'll be talking about my book The Science of Middle-earth at 8pm tomorrow night (Tuesday 12th) at Joseph's Bookstore, 1257 Finchley Road, Temple Fortune, London NW11 0AD (tel 020 8731 7575) email here. Tickets are £9.95 to include meze and glass of wine. Your host, Michael Joseph, advises that booking ahead is essential (if only so they can ensure that everyone who turns up gets fed and watered). Hope to see you there!