Magic School Bus meets the Magic Tree House in this fourth installment
of a school-based chapter book series by bestselling author Nancy
Krulik. When their teacher takes them to Iceland, can the class escape
the trolls?
Mr. Frogbottom's class is on a field trip to Iceland, the Land of Fire
and Ice, where the kids meet terrifying and sneaky trolls. But can they
find their way back home after the Magic Map goes missing?
Bestselling and beloved author Nancy Krulik ingeniously approaches
geography in a new way, as the kids learn about the places they visit
while fighting, fleeing, or in some cases rescuing monsters.