Not quite right. Hornet and Soledad are only 20' from the exit from the gulley. The rest of you (and the gnoll and bugbears) are another 30' up. So if you go another 30' next turn you will have reached the spot currently occupied by Soledad and Hornet. Then it is 20' past that to get to the actual end of the gulley. As for the gulley end - think of it as a very thick hedge with an opening in it. The opening is roughly the size of a door and there is brush and bracken that is used to fill it - although it is hardly a solid door. And it is open at the moment. Once outside of the gulley it is 20' to reach the river.
If our character dies, aren't we allowed to play anymore period? Or can we make a different character and rejoin the game? I'm just worried that if Thäoran dies then that'll be me out for good and I'm really enjoying this.
This is D&D - when you take an 8 hour nap that massive axe blow to your head magically heals completely. There are things that can be done. Sometimes. And sometimes the character is gone. The player, however, does not die. There is that nice little "restart" button you can push to restart the game. Sort of.
That is a long way of saying - you are always welcome in the game and if Thaoran does go meet his father in the long dark night, you can always make a new character.