Rin carried on training until way into the night, her mind a complete blur. She wouldn't let anything, worries or not, invade her mind.
"Lady Rin, your father is starting to worry. You should come home."
Rin barely stirred at the sound of one of her father's servants. "I can't, Suzume. There's a huge vertex coming, and I have to be ready for it."
"My lady, you will not be battle ready if you are too exhausted to fight," Suzume answered, "You really ought to"--
"Tell my father I'll be another hour, and then I'll come home," Rin said gruffly, "I also won't be battle ready if I don't have full command over my weapons."
"As you wish, my lady," Suzume begrudgingly said, walking away.