The name “Aunt Beast” fits the alien creature because it evokes a sense of nurturing combined with an otherworldly quality, much like how an aunt might care for you while also being unique and different from your parents.
On page ___, it states that Aunt Beast has a comforting presence and provides support to the characters, reminiscent of how a loving aunt would nurture a child during difficult times.
Additionally, the term "Beast" suggests a wildness or strength that is often associated with protective figures, paralleling how an aunt can exhibit fierce loyalty and defense over their loved ones.