Hi H.,
My daughter, when she was 3 yrs old, went through the death of a beloved classroom pet (it was her brothers' classroom, next class to hers). The pet was a snake named Sophia. My daughter adored this snake, had to say good morning and good night to it. If we left the school w/out her saying goodnight, she was beside herself.
I also have a son that died as a baby - he was born before my daughter. She knows about him - but Sophia's death actually led to some wonderful conversations about life and death.
I was fortunate in that her school explains death to children as when your body stops working. So since Sophia died, her body didn't work anymore, she didn't eat, poop or sleep anymore.
That conversation was expanded on - and I also expanded on it. I explained to my daughter that death is part of life. Every living thing dies at some point - grass, flowers, bees, trees, cats, dogs, even people. She asked me if she would die sometime - and I just calmly explained that everyone will die at some time - but hopefully not for a very long time.
She asked about her brother - and I said, yes, he died but most people live a very long time.
She would bring the subject up from time to time, I let her know it was okay to cry, be sad - that she could always remember Sophia, she could always think about her brother - but that we couldn't see them again. Now they lived in our hearts.
For a while she would tell me she didn't want to die or didn't want me to die - and I said I didn't want that to happen - not for a very long time. She tells me she wants to live forever, and I just let her know that well, maybe she will live so long.
She seems fine w/ the circle of life. (I also explained that if everyone lived forever, then whenever someone was born - it would be more and more crowded). She seems fine with it - she will bring up the subject, but not in a sad way. She seems to be well-adjusted to life/death now.
Good luck w/ helping your son handle your pet's illness. I'll keep good thoughts for Chance - maybe it will be something he can recover from, and give you all more time to discuss this topic.
Take care.
L.
Mom to 2 surviving triplet boys, will be 7yrs old next month, and 4 yr old daughter.