Fraternal twins Teresa and Fernando have always been together, and always will be--at least, that is what Fernando thought, anyway. Now, though, Teresa wants to go to a different middle school, which means she must cross the U.S.-Mexico border. Problems arise for both twins in their respective schools, with friends coming and going and worries that their family is falling apart. Teaching Books: https://www.teachingbooks.net/tb.cgi?tid=83345.