As an aside, pretty much all the skill checks are rolled like in P&P. In other words, we don't utilize a check that just looks at the skill rank and passes or fails based on that alone. Because a random d20 is generated, it is possible to both fail checks you shouldn't and pass checks you shouldn't.
A few cases are different. Some require you have at least one rank in a skill to pass, so for example if the DC is 18, you can't just pass by lucking into a roll of 19. A few other checks have other restrictions, which I won't divulge for now, and this is one.
Is it possible to betray companions? Can they leave and /or betray the PC?
Yes to both.
Originally Posted by Thrasher
Originally Posted by txa1265
Thanks to all for the nice comments - also thanks to Avantenor for subtly telling what I was barely hinting at in the review.