As HuDu went through SMC straight to CoC w/o entering Terinyo. After completing Animated Forest quest leave CoC, did Pyramid, Graveyard and High King, visited Terinyo, got quests from tiny girl and Druid. Returned to Dwarftown, speak to Thrundarr about 'quest' and got 5000 gold and access to the arena quest (4th), while not even visiting ogre cave.

This bug seems close to this one:
http://www.adom.de/forums/project.php?issueid=5927