We were told this morning by the parents. Absolutely devastating news :( The boys are five and six. We haven't said anything to DS yet, but he has been asking when he will be back at school. DH reckons we should just say that his friend is sick and won't be back for a long time, but I feel like I/we need to be prepared just in case he asks. He has encountered death before (a pet and a great grandparent) but not the potential that a child could die. I'm wary of frightening him, but I also don't want to lie - I don't think that's helpful. I don't know whether the school know yet either so not sure how much to tell him in case he repeats it and the family aren't ready for a wider circle to know.