Young Rollo is full of wanderlust again -- and yearns to visit the lands where he might see the immense, sea-stopping dikes, the great windmills, and the endless lines of the canals crossing the flat countryside. But would it be better to visit in summer -- or winter? He has heard wonderful stories of Dutch women skating on the frozen canals to go shopping.

When he asks Uncle George about it, his frequent traveling companion brings up a problem with either summer or winter -- for he speaks not a word of Dutch How would they get around?