Sabotage! Spawn Learn everything you need to

Learn everything you need to know about Planet Earth in this incredible interactive encyclopedia

And bringing to light what some have concealed for years may not be free of consequences

Sea Sick: Lime Juice and Scurvy is part of the Royal Museums Greenwich Spotlight series

THE SUNDAY TIMES BESTSELLER 'A mind-expanding tour of the world without leaving your paintbox

Sabotage! Spawn Learn everything you need toOn the night of 4 July 1943, transport aircraft Liberator AL523 took off from Gibraltars North Front tarmac and within moments crashed into the sea with only one survivor, the pilot. The commander in chief of the Polish army and prime minister of the Polish government in exile, General Wladyslaw Sikorski, was dead. Rumours as to the cause of the crash abounded. Was it pilot error? Was it, as officially classified, merely an accident, or was it, as the