Cadence switched off the treadmill and wiped sweat from her dripping forehead on a towel. She’d missed a few days, but now that Aaron was back to his normal self, she was determined not to let another day go by without finding herself in the gym, leaving her frustration on the black, looping track. Since she had put in her thirty-five miles now, she would be able to concentrate better, which was a good thing because there was a lot to be done. And to think, today she’d gone that far in half her usual time.

She headed for the locker room , noticing the complex was eerily quiet. She...