Young raven Alaan is training to be a healer, and he goes to the great battle of his age. After the battle, the ravens are determined that there should be no more wars, but how do they achieve this? Helped by crows and swallows, a small group of birds fly over the Great Seas to find out what happens there. The ravens at home wait anxiously. When the travellers return, a whole new life opens up for the young ravens, and for older ravens too. The Ravens at the Tower of London are restless, and two of them determine to escape. Will they succeed?