I hope that you are able to help your nephew and his Mom make the best of this devastating experience. Some of us surely get more than a fair share of tragedy and grief.
I wish for your sister to be taken care of so that she has little pain as she moves through this journey. I also wish for you and your nephew to find moments of peace, joy, and comfort in the time your sister has remaining.
Please come back here for any needed support. Whether it be advice or simply venting, we are here for you.
With great care,
Kerri