Ah, a report of Loch Varn; great! I was looking forward to having some feedback from the English-speaking community!
The group decided to make their own characters. They are seasoned role players and they decided if they were going to be playing this for a long time then they would rather be fully bought into their roles. We ended up with a magientist, a damathir, a blade adept and a warrior/rogue. I easily aligned them with the premades for plot points.
Yep, it's undoubtedly always better if the Players can have their own Characters instead of being necessarily restricted to premade ones. Those from Book 0 are great for one-time sessions, and even for a whole campaign, if the Players are okay with it, but as far as I'm concerned, nothing beats shaping your own avatar in the end!
I really liked the music suggestions for some scenes. Not having the songs listed I did a bit of research and found similar from the Chronicles of Riddick soundtrack and Clannad albums. Even one from Bladerunner! If people want to know what I chose for each I can add that after.
Sure! If that's not too much of a bother, do share that with us. I'm always on the lookout for fine pieces of music, and who know, maybe it will inspire someone else to spice up a scene, or even to create a whole scenario!
First problem for the players was the fight with the Melwan fighters. They felt they were quite hard in comparison to the players. I suppose this is true. Luckily it is part of a nightmare so not reality but it did become a theme that they were constantly underpowered. Ok if it is a giant man eating plant, or so much when it is just a guy in leather armour. I had to increase the power of healing to make sure they didn't die straight away. Might have to look at that for the game in general but works at the moment for the 'dream'.
Well, after all, the idea is that they're trapped in an awful dream, and that they are doomed to perish horribly, whatever they do. However, it is true that even if none of it is real, it can easily be a let-down for PCs to see their enemies wipe the floor with them. In such a case, don't hesitate to lower the power of the opponents to make the fights more realistic and uncertain, or to simply roll the die secretly, and then announce what result fits the situation according to your needs.
For me the first tricky bit was at the camp. The players keep asking the old man and warriors who they were and where they were. I understood from the scenario (may be wrong) that they shouldn't learn that at that point. I tried being vague but they pressed. In the end I made the warriors out to be suffering from the same memory loss which the players accepted.
The basic idea of this part is to have it all go so fast that the Players don't have the time to think about it and start asking questions. However, it's true that there can still very easily be a "Woah there, wait a minute now..." moment.
The NPCs at the camp are indeed supposed to remain anonymous. Your solution was not bad. Another possibility would have been to feed the Players with useless information: instead of telling them his real name, Jearon can tell them the name of one of their childhood friends, since their memories are all mixed up... or maybe he can even tell them his name is Verzal (an influence of the fact that the Varigal is currently being possessed by the ghost of the Magientist), which should sound all the more ominous when the name comes up again later in the scenario!
The ruins scene was fine but I had to block up the entrance to the factory to make them explore further. They stepped in goo and discovered the report in a desk. by now a healthy level of paranoia was getting them to sneak around corners and use lots of torches. I did add some magientist symbols to things, including the one on the necklace to keep up interest. Of course they had no idea what they were. Yet. I went with the giant plant for a fight where one player was eaten then they went into a side room where they met the centipedes. As each one was caught they were crushed/ eaten etc and that ended the scene, ready for the to wake up screaming next week!
Any questions? Otherwise I'll add what happens next.
Quite nice overall! However, one question comes to mind: did you include the scene with Terent? It's a rather important component of the scenario, and since you did not mention it, I am wondering if you forgot to, or if you simply removed this element.