Spoiler:

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Raven vanished in front of your eyes into the Adanos temple and locked the only entrance from the inside. To follow him you have to conjure the ghost of Quarhodron. For this purpose you received an incantation spell scroll which has to be read (use) in his tomb.
But the ghost isn't easy to convince to let you into the temple. First you have to answer his questions truthfully.
The answers are:
1. The guardians of the dead
2. The warriors' caste
3. The priests
4. The warriors' caste
5. The scholars
6. The healers.
7. I can't possibly know this answer
Then you will receive a special stone tablet which has to be read (push the use key) in front of the locked door.

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