[shift244]

Try reading the scroll anyway once conversation ends and see what happens. Then try talking to Demogorgon again if conversation does not auto-trigger.

Demogorgon doesn't appear until later, then you can have your fun. For now, you need to pass the phase where a scripted event needs to occur first and (I believe) reading the scroll should be a trigger. There should be two triggers in the conversation, but only if you choose the correct options.

-One should end in immediate combat, while the other will be forced on you if you choose to read the scroll anyway.-