After the "what is die?" debacle, I realised I am not prepared for such questions. So I was pleased to find in the library yesterday a book by Miriam Stoppard, Questions Children Ask and How to Answer Them. It gives different approaches depending on the age of the child, which I like. I am also impressed with the range of questions and the truthfulness yet simplicity of the suggested answers, especially the section on sex. I think it is really important to answer children's questions truthfully, but on the other hand you don't want to worry them.
I have Miriam Stoppard's Complete Baby and Childcare Book and generally find her to be pretty sensible. It seems, as I suspected, I was completely wrong to say dying was "not being here anymore" as children think the person will come back. The suggested answer for two to four year olds is "'dead' means a person or animal stops breathing and their body doesn't work anymore. Usually people and animals only die when they have grown very old."
Now I just have to wait for him to mention it again. Probably this won't happen now, but at least I am prepared!