Bethany Pearson is the oldest Pearson child in the family and a minor protagonist in Aliens In The Attic. She is the older sister of Tom and Hannah Pearson, and the older cousin of Jake, Art, and Lee.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
