adventures of Rudolf, Pietertje, and Hubertusje in the Heuvelland

Rudolfje, Pietertje, and Hubertusje are three enterprising brothers. They are a little stubborn, but their hearts are in the right place. They are also curious. This has gotten them into trouble before-in the first part of this series-and it happens again in this second part. They are now back in Bommerig, a hamlet above Mechelen, in the summer of 1941: the three boys, together with their friend...