I don't want to give too much away but you'll learn more about "those" moles in episodes to come after you're introduced to "The Blind Bandit".Just saw the first two eps of S2. Learned a little more about the Avatar Form. I like the idea of an Earth General trying to force Aang into going after the Fire Lord right *now*, it reasonably deals with that question I was just starting to wonder. So in the "cave of lovers" episode, those giant moles were supposed to be the inventors of Earth bending and taught it to humans? Literally those moles, or just moles in general? Also I thought it was cool that the new evil sister has lightning powers, it's a nice twist/addition to the fire stuff.

Azula will be one of the main antagonists in the show going forward. However, I have a bigger crush on her friend Mai.
Also watch the subtle changes in in how the characters are drawn as their environment changes. I especially love how Zuko & Iroh grow more and more unkempt as their wealth dwindles.
Keep watching.
