Arthur Ransome 
Swallows and Amazons (stage version) (NHB Modern Plays) 

Arthur Ransome's famous and much-loved children's classic is brought thrillingly to life in Helen Edmundson's wonderfully theatrical adaptation, with 'delightfully catchy and often witty' (Telegraph) songs by Neil Hannon of The Divine Comedy.
When John, Susan, Titty and Roger are granted their wish to set sail on their beloved boat Swallow, they know it will be the summer holiday of a lifetime. But their adventure truly begins when they encounter Nancy and Peggy, the self-proclaimed Amazon Pirates, and the dastardly Captain Flint.
'Warm hearted, affectionate and fun' — Daily Telegraph
'Perfect – a brilliant feat of nerve and humour' — Daily Mail
'Full of wild adventure' — Guardian
'Infectious… Helen Edmundson provides a sprightly script' — Financial Times