She needed no other prompting, diving straight in and using a gust of air to turn it into a handspring, landing on her feet and coming up in a defensive stance. She frowned at that space - it did not seem right at all. But it looked...

"It's a tunnel!" she called, lighting a fire around one of her hands. "I think they're down it!"

She was off, immediately, trusting Iroh to keep up - so far, he'd been full of surprises. She was certain he could manage at least one more.