Snowmen

Last night I was in Ascalon City when snowmen starting popping up all over the place. They would seem to go in a curved line, then disappear in basically the same fashion they appeared, making a popping sound. I asked people there if they knew what it was, but nobody really responded. Any explanations?

Snowman Summoners.

Ahhhh...now that I know what to look for, I looked at the wiki. Here's the link if anyone doesn't already know about it.

http://guildwars.wikia.com/wiki/Snowman_Summoner