'Matt wouldn't look at her as he spoke I'm going to be a clown, Olly I mean a real clown And now I know where I'm going to do it I'm going where my swallows go I'm going to Africa' As Olly waits for her brother's letters, she watches the swallows preparing to leave for the winter Hero the swallow starts his long journey to Africa, not knowing the terrible dangers he will meet on the way And when Matt sees the children in the African orphanage sick, injured and lonely he knows he's made the right decisions, but he never could have dreamt of what was going to happen to him there