Like any 10-year-old, Zakael wanted to be outside playing more than anything. But he couldn't get away from the teasing of the children in his village who didn't understand the cyst on his neck.

By the time Zakael was 10-years-old, the tumour on his neck had grown to the size of a grapefruit. Aboard our ship, the Africa Mercy, Zakael finally had hope that his nightmare of suffering would end.