I'm at quest stage 70.
Garisa Llethri keeps saying the same lines, even if I have the secret caldera ledger by me. I tried reloading.

How can I finish the quest. I am unfamiliar with console commands so please be exact.

Firstly, are you sure you have the correct record book - there is only one correct one (although several false ones) found in a chest in Caldera Hall. You can add the correct one to your inventory and try talking again.

Open the console.
Type exactly

player->additem bk_CalderaRecordBook2 1

Enter
Close console.


If not, enter these lines one at a time, enter after each.

Journal HR_CalderaCorrupt 100
Journal HR_CalderaDisrupt 10
Player->RemoveItem "bk_CalderaRecordBook2" 1
ModPCFacRep 5 "Redoran"
"garisa llethri"->ModDisposition 10

Thanks. I had the correct one already, but only finishing the quest manually helped.