The children of the king

"Cecily and Jeremy have been sent to live with their Uncle Peregrine in the English countryside, safe from the war, along with a young refugee named May. But when Cecily and May find two mysterious boys hiding in the ruins of a nearby castle, an extraordinary adventure begins."--Publisher's web site. Three children have been sent to live in the countryside, safe from the war in London. When they find two boys hiding in a castle, the past and future come together to make an extraordinary adventure.