I answer the "main cult", The second one is like you said the Nericon cult and the third one is when you want to become a member of the Warrior's Guild.

Quote
The second test
Game Information: I must go and find the Heart of the Dragon, which
can be found in an ancient castle nearby. A cult of Dragon
worshippers protects it.

Not in the mood for cheese?
That excuse has more holes than a slice this fine Gorgombert!