Code Name Foxtrot by Anton Du Beke, Puffin £7.99

Anton De Beke’s first novel for children is a World War Two adventure. With their father missing in France, and their mother busy with the Little Mayfair Tea Room, twins Harry and Rosie are sent away from London to live with their mysterious great uncle on the Lancashire coast.

But when Harry spots strange lights on the beach at night, the twins suspect that their new home might harbour a secret. A thrilling wartime adventure, with a touch of…