Abner and the Bubblegum Balloon (en Inglés) - Jon Klassen;Jess Hannigan

Abner is the only child that can't blow a bubble at school. So,
he spends all his pocket money on bubblegum and gets to work.
His bubble gets bigger, bigger . . . and BIGGER still, until it becomes
a veritable balloon!

An excting journey ensues as the balloon carries him far away
on a whimsical flight, landing him in a farmer's field, spurring
an unlikely friendship. As he earns back the money he needs to float
home, Abner soon discovers the quiet pleasure of the countryside,
the power of friendship, and the profound ways we discover who
we are when we dare to venture beyond!