I uh... have no words man. One hundred miles? As in, one hundred miles in one go? That's ridiculous... where do you find time to recharge? I mean, that must burn calories like crazy. I've heard of eating on the run before, but sheesh...
Now that sounds like my kind of book! I don't know much German (at all), but this makes a lot of jokes about scat porn make a LOT more sense now, if this is what their kids are reading.
Also, it's easy for us adults to forget that children don't usually understand logistics. Definitely puts things into perspective, interacting with them. My niece is always a bit interesting in how she sees the world.
Proud to say that in high school, I was cracking well into the 6 minute range for a full mile, long as it was in the gym. Gym floor was kinda rubbery, and I had traction. Can't tell you how many times I've fallen on my ass trying to run too fast but not having the traction...
Then again, this was at a time in my life that I was living in Arizona. Roughly at 2000' elevation, I was playing soccer and skateboarding almost daily. Up here where I live now, we're at 6500'. I think I'd be pretty happy to be in the 7-8 minute range for a mile now, darn thin air.
Still... 100 miles just boggles my mind. Even for an animal, a literal, not of the human variety animal, 100 miles is a loooooong way.