Reacher has found the best way to never get attached is to keep moving. Doesn’t matter if it’s a person, place, thing. No matter what, keep moving. You can’t lose someone, somewhere or something you weren’t connected to from the start.

But he took her number and he promised to call if he was ever in her area again. Sure, empty promises aren’t good to make. As it turns out, though?

This was a promise he actually would make good on. He kept her number in the safest place of all, his mind. Reacher remembered every last digit. So he hoofed it over to the nearest payphone to give her a call.