Emma knows that having superpowers isn't always easy, especially when you have to keep them secret. But it's even harder when your mischievous little sister can

An endearing little girl becomes a superhero for her family in this fresh take on a new-sibling story.

Being a sister is super! Being a super sister is even better! From the pages of THE SISTERS and spinning out of Maureen and Wendy’s imagination, these two sib

Based on the largest study ever of sister relationships, "My Sister, My Self: The Surprising Ways that Being an Older, Middle, Younger or Twin Shaped Your Life"