The Girl With the Red Balloon, by Katherine LockeRead about another entry on the list.
Another time travel book that gets it right? The Girl With The Red Balloon! This 2018 Sydney Taylor Award Honor Book follows Ellie as, with the aid of a red balloon, she falls back through time to 1988 East Berlin. There, a secret group helps people escape over the Wall with the help of balloons and magic—balloons that are not supposed to travel through time. There’s a different magic at play, one that could change history and stop Ellie from returning home, and if she and her new friends don’t stop it, everything the group works for could crumble.
--Marshal Zeringue