Back from Spring Break and the trip of a lifetime, where Gabby met her uncle Sol Azteca, a famous luchador, and learned about her roots -- Gabby has a new friend by her side...former bully Natalie Gooch. With their friendship blossoming, Gabby is eager to fight for justice and protect her town. But when a former substitute teacher returns to Fillmore Elementary acting a little bit nutty, Gabby learns that danger might be closer than it seems. Will a Gum Girl team finally assemble? Or will Gabby Gomez finally be stretched to her limits?--Amazon.com.