The Frost Forest's final BOSS was the Goblin Emperor Frost Thain. Just by looking at the name, a player could figure out this BOSS was even more important than hidden BOSSes in the beginner village.
Thain's body wasn't very different from a normal Goblin, but his fierce face seemed more sinister and cunning. At least, he didn't have an eye-catching funny blue nose like normal Goblins. This was because the Frost Thain's skin was all sky blue. When he turned around and didn't show his face though, he looked like a cute house pet.