Not our pet but a close relative has had pet put to sleep. DD is 3 and always asks to see pet when we visit. I want to tell her before we go there again but want to broach it carefully. I want to be honest with her but avoid 'gone to sleep / heaven/ sky. I know she won't fully understand but I feel it is important to get it right. I know some will say it's just a pet but this is the first time something like this has happened. Any advice on how to use a good form of words would be massively appreciated!