My sister was telling me about a book she read a long time ago, about a boy, who was really an angel (or something like that?) eventually I think she said he got drowned. I know its such a vague description but that's all I can remember. Basically i'm trying to surprise her by buying her the book and sending it to her, where she currently works in a poor country, as a gift to cheer her up. So if you have any idea whatsoever, please let me know!!