The air coming from the left is damp, and incredibly chilly. You can't help but shiver a little when it settles on your skin, and you kind of don't want to walk in that direction.
But at the same time, there is air coming from the left. Which means some sort of open space, be it the sky or some sort of large cave.
...Or maybe there's just a Digimon with a fan waiting at the other end, but you're going to at least try and pretend that logic means something here.
"Which way do we go?" Rikuto asks you. "I'm... not great at navigating underground."
You don't know why he thinks that you are, but you suppose that one of you has to make the decisions, and this is his way of ceding that responsibility to the one who'll be fending off any negative consequences. "It... might be safer to go to the left." It could lead out, while for all you know the right side path could lead you to a dead end for Puppetmon and his minions to corner you at.
"There's air that way!" Biyomon agrees, swooping off down the tunnel into the darkness without a second thought. It takes you less than a moment to run after her.
"Hey, wait up! Biyomon!"
That was half an hour ago, you think. You haven't exactly been checking the time on your Digivice. But that feels about right, and you don't feel like stopping and checking the time. Why bother?
You wonder how Puppetmon dealt with his base being set on fire. You wonder if he noticed the open trapdoor. Something tells you that pretending you were never there is significantly less of an option than it used to be.
"Are we there yet?" Biyomon complains. "My wings are getting sore."
"You can walk," Rikuto points out, before yawning. "But I'm... kinda tired, too..." He yawns.
Now that they both mention it... you can't help but feel weighed down from all the walking you've done today, all the stress of trying to sneak into Puppetmon's base... utterly failing at what you'd set out to do... It's not even your first recent failure. Things have been going wrong at least since Myotismon, if not even longer than that.
Okay, so you got what you wanted out of it, but now you're wandering through a cave. This was not in the plan and there's no way that it ever would be.
[ ] Maybe it wouldn't hurt to take a short rest, just for a while...
[ ] Maybe... you could keep going just a bit further...
[ ] ...At what point does it become a good idea to try and dig your way out?