Arnaud is an old experienced Dominican friar. One of contemporary witnesses of St. Dominic. He looks after his younger fellow friar and is also in charge of the investigation. He’s pious, zealous and unyielding man. He longs for a pure and right Church and intends to obliterate all the heretics. He’s been in the holy inquisitors‘ office for years now and he’s been pursuing his task thoroughly and with all due respect.
Mark out one road for the sword to come against Rabbah of the Ammonites and another against Judah and fortified Jerusalem. For the king of Babylon will stop at the fork in the road, at the junction of the two roads, to seek an omen: He will cast lots with arrows, he will consult his idols, he will examine the liver. Ezekiel. 21, 20-21