Blitz and horses

So I just had a random thought. Correct me if I’m wrong, but do we know what Blitz’s mom did in the circus? What if she took care of the horses? If she were their caretaker, she’d spend a lot of time with them, Blitz spent a lot of time with her, so he would have spent a lot of time with the horses too. What if she died in the fire cause she was trying to get all the horses to safety? What if horses help Blitz feel closer to his mom?