It’s 1940 in a sleepy Sussex village. George, a retired mechanic, receives a letter from the War Office. Magpies gather, hopping on their twiggy legs. ‘What’s this?’ they cackle. Momentous changes are afoot. While above, amidst comic absurdity, a dark and menacing intrigue simmers among the birds. 7.30pm, picnics 6.30pm, therudemechanicaltheatre.co.uk.