Asking for my sister... her 11 year old lab is really not doing well and the vet thinks she's in a lot of pain. The vet told them they should consider putting her down. My sister is extremely upset, this dog has been around longer than her kids or husband. She was her companion when she was single and living by herself.

Right now she's looking for recommendations on how/what to tell her almost 6 year old... any advice? In general about death, but also, do you tell them the whole euthanizing thing? Or do you leave that part out?

Parenting is hard...

(we are a semi-religious family so heaven is definitely talked about)