Juultje learns from André that Bennebroeck is proficient at making tiny technical gadgets. For instance he helped André make a pair of walkie talkies for him and his father. Grandpa spots the man with the white raincoat who's been following him at the Runkum hotel.
Juultje hoort dat Bennebroeck kleine technisch snufjes kan maken. Opa ziet de man in de witte regenjas weer, die hem volgde naar het hotel in Runkum.
