"But you're just going a couple blocks over," she said. You paused, trying to work out the distance, glancing back and forth and comparing it to the views you'd had above Sunset District. You held out a thumb and used the method Esmé taught you, measuring building by building in one direction, then the other, alternating eyes and measuring the jump.
"Well, it looks like about four klicks to the palace, and it's about four miles to school in a straight line, so it's the same distance, I think?" you guessed. Sage frowned, took a deep breath, and shook her head.
"Ward, a kilometer is less than a mile," she said, sounding like she was regretting every syllable.
"Right, so how many kilometers is a klick?" you asked, remeasuring just to be sure.