>This happened to a friend, and learned how mobs end up trapped
>below the world. He ran for the zone. The mobs chased
>him. The path to the zone is twisty. The mobs ran straight
>for him. The mobs don't care about the height of obstacles
>(they will walk right over trees and mesas and buildings
>regardless of whether or not a player could). They walked
>right over the wall, and presumably fell below the
>world. Neither the wolf nor the rest of the train came back
>from the zone, except my original pull which teleported to me
>like mobs do when they get stuck.

In my limited travels - I've found 2 places like this.

My poor little Ogre warrior which shall probably never see lvl 10 - runs
for the landing at Guk whenever one of those nasty human type NPCs decides
to start wacking at her - without fail, they run up the side and disappear.

Last night in Oasis - at the south end of the beach was something stranger.
Was pulling from the South camp - down to the water - if the mob ran North
up the beach, they just poofed! No zone there, no nothing. Do do do do,
do do do do - it was like the twilight zone - and after awhile started to
get irritating.

Somewhere there must be a room just choked full o'orcs.