Also a bit of a maps question: How did everyone physically get the Desert Habitat onto a map/table? I'm counting it as 40" and I don't know any maps that go that big.
I'm starting the campaign in a few weeks, and fully expect my players to get to the habitat pretty quickly.
I put the western half on a drawn map, and then just drew the eastern doorway on another. Since the skeletons will be drawn to the heroes when they encounter the first one, and my heroes weren't very stealthy, I knew I was going to have that fight right at the western entrance, which is exactly what happened.