Ella the Elephant is Sophie's bright blue elephant stuffed animal that she brought with her from the Forbidden Cities. Sophie cannot sleep without it, so Ella is a must-have for her.
In a deleted scene from Neverseen, [1] it was mentioned that Mr. Forkle bought it for her after he triggered her telepathy. However, he thought it would be better coming from her family, so he gave it to Emma Foster and had her claim she bought it.
She is one of Sophie's closest companions, and Sophie finds it hard to sleep without Ella in her arms.
Sophie is somewhat embarrassed to show Ella to her friends (especially Keefe).
Ella is also seen to be able to calm Sophie down. When Sophie was leaving the human world forever, she quickly held Ella and calmed down immediately.