I finished the whole game now and I have to say that the end sequence is one of the meanest cliffhangers I ever saw in an adventure game. Now I can't wait to play "Ben Jordan 8", but I guess I have to wait about one year, before this will happen...
Nonetheless this was the best Ben Jordan adventure so far. There were some real puzzles and I think for the first time I didn't get the full amount of possible points (I think I had 100 out of 106 at the end), which means I might have missed some things.
I didn't encounter a dead end. Can you send me a PM and tell me what horrible mistake it was that made it impossible to finish the game?