I've talked to everyone at Aleroth and I seem to have nothing left to do. the city is still half blocked, can't help with clearing the remains of the invaders... why?
There's nothing more to do in Aleroth. Disappointing, but true. It seems a lot of planned stuff was cut.
I saved High Hall's well [But there's a building in the town which I cannot enter, anyone knows why?
This is probably the building belonging to a quest-related NPC, who might be dead depending on how you solved that quest. If he's dead, the house stays shut. Or it may be the haunted house from the ghost hunters' quest. If you didn't offer to remove the ghost yourself, *that* house stays shut.
Is there a way to make the anti-dragon shields from Orobas' area?
No. The anti-dragon shields around the harbour and High Hall can't be removed.
Plus, I can't go back to Broken Vally nor to Rivertown George. I am attacked by very strong dragons and fortresses.
Broken Valley is probably where you need to go next. How many of the four items you need for the Hall of Echoes do you have? And what's your character level?
