IT's fine!
I'm entering this in a contest so I NEED critique!
I was trying to think of a "humane" way for Russell's mom to die, I wasn't just going to have her drop dead in the spot. And, yeah, I wasn't sure about the Ellie bit....but Carl needed desperate guidance, and he wasn't about to ask his dog!
Plus, in my Up: Space Emisary, there is ONE chapter where Carl breaks down and practically screams for Ellie to help him.
I won't tell why or when, but it's the only time.