When I was 13 my sister died while using heroin. She had been using for 7 months and we (her close family) had no idea. When I had my children, not wanting to ignore her existence, I explained that they had an aunty who died before they were born. My children are now 8 & 7 and asking me "how" did she die. I initially said a terrible accident, but the questions pop up every now and then and I am unprepared on what to say. I know that I have never dealt with my sisters death well, never had counselling myself and I don't really know when to introduce the concept of illegal drugs to my precious (and rather naive children). I am so lost and unprepared for their questions, please help.