Think they could circle the Earth in just one night

Her dark-haired brother flying behind her was having a good deal of fun himself. He would swoop around, over, and under, dodging and weaving through the clouds as if it was a game to avoid touching them. The trio had been flying through the night non-stop, without any care as to where they were going. Though they were following 18, she didn't have any destination in mind. For all she knew, they could have circled the Earth during the night.

- Bringer of Death Chapter 41