The Mysterious Client calls Bassie & Adriaan

Bassie & Adriaan arrived at the address but they arrived an hour early. Meanwhile Adriaan rings the doorbell at a house, only there is no one at home and Bassie is standing against a telephone booth. Dan discovers they are an hour early and decides to check out the town of Caernarfon. An hour later they go back to the address. Adriaan rings the doorbell again at the house, but they are not at home again and Bassie is back at the pay phone. At that moment there is a call and Bassie quickly picks up the phone. It is the mysterious client who calls and gives Bassie & Adriaan the new riddle. The scene with Bassie at the phone booth was shot on Market Street in Caernarfon, Wales.