Hello, I have a big problem with the quest after the Bloom.
I completed the Bloom quest with no problem, and now I know I should receive a letter from the aldori asking me to check on Varnhold... but the letter just never arrive.
The time passes and undead cyclops start attacking me, until the " magic energy " destroy my capital.
I really don't feel like starting a new playthrough, so.. what can I do to solve this ?
Is there anyway to trigger the letter or the vanishing ?

Did you try proactively going to Varnhold and seeing if that triggered the quest?

Yes, I tried, but everything seems normal there.
The soldiers stops me and force me to go to Varnhold, so I can't even explore around it.

Haven't played in a while. But, I remember something about a quest to find a family member that leads to getting around the varhold area.