Rex's Hyena mount

We had a Goldrich event where we had to collect 20 N, E, W and S from normal monsters and get a compass which we use to transport to one of 12 different maps (based on your level) where you kill a bunch of pigs to get eggs (which gave mastery books and such). Is this the event in question?

We also have the glitch snails in our monster books as well (something lime denden).

That was an event that came along side of the event I am referring too. That event was the Goldrich "vault" which was a for hunting the golden pigs. During this event, there was development for a type of maze known as the Goldrich maze. The maze unlike the "vault" did not contain the golden pigs and was not based on level, rather an indeterminable element because there wasn't any sort of attempt at producing the maze from what was and what could have been added to the data. Those snails that are in the monster book are/were apart of the maze.