Well, everyone, I imagine, is back at school and, being cross country skiers with enormous lungs and an ability and desire to go for a long time (what: are we Huskies?), that you are running this fall with your schools. Most excellent(!) and it’s a great excuse to get out of class early on race days, no?
Running is a very efficient way of getting fit. Running trails is also a great way to get your mind used to missing trees while you’re skiing.
So, if you haven’t signed up for school cross country, I would highly recommend it! Any APJ Track Attacker should be able to do this with no problem! I have the utmost faith in your huff and puff abilities. Go run hard!