Seems like the most common advice against the Beast is using Aard. The Beast is also beatable without signs, though you do need a Swallow and Blizzard potion. If you use ghoul blood and Celandine, you can get a nigredo Blizzard, which ups your damage by 20%. Meteorite sword, specter oil, that potion and a swallow and then using fast style on the critter after eliminating all but one barghest works well. Didn't have a single talent spent on Aard or Igni. Even Abigail survived until the peasants showed up.The point about fast style is that you need both the damage and pain boosts maxed out, together with the pain bonus from the blue meteorite (I'd done the lab against Savolla instead of the Frightener in the prologue) lets the Beast get a taste of its own medicine. You also need to keep out of its way, meaning you go in for one series of strikes, perhaps two. Then you need to back the hell off by dodging a couple of times and then go back for more so you can avoid being in pain. Having stamina upped to lv 2 helps to have some resistance to pain (10%). If the Beast gets crippled by pain, you can really unleash a can of whoop-arse on it, at which point it's easy to finish it off. Surprisingly easy, in fact. And that was playing on Hard, I never even considered the easier alternatives.There is also something to be said for keeping one's options open. I screwed up the first time I played Chapter 1, so I just restarted (would have done anyway, as I made the screwup at the end of the prologue). I actually saved my talents from the level-ups except for getting the lv 2 styles and most strength, dexterity and intel upgrades and group style. So I had 10 talents to spend before going to face the Beast. Save before talking to Abigail, talk to her, rest and upgrade, then go to the end. That way you don't need to replay the whole chapter if you screw up (assuming you did not screw up the quests). You really don't need those ten talents before you go against the Beast, the chapter is easy enough to get through as long as you're prepared for what you face (which sometimes means needing to run like a rabbit for a while if you go against several ghouls or half a dozen barghests at once).