It's been a year since they left the train. She's missed him a lot - and everyone close to her damn well knows it. But she hasn't just sit around pining for him in the intervening months. She's trained to further master the use of her new gifts - and to pass as many of them onto others as she can. Earthrealm will continue to need defenders, after all, both in the Special Forces and outside of them.
Mind, the debriefing after her return was a bitch and a half. They had a hard enough time accepting the whole being-able-to-fly-just-by-learning-how bit.
But things had gotten a lot better after that. She'd made Commander, for one. She'd also led a mission to take out the Great Cathedral of the Netherrealm without suffering a single casualty. Meanwhile, Jacqui and her fine band of misfits and nerds in the Tech Unit claimed to be making progress in the field of interrealm communication and transport.
She should've figured the peace wouldn't last. Turns out Kronika had a problem with how unbalanced things had gotten. And when the Mistress of Time has a problem, everyone has a problem. Now past and present have collided, old folks are running into their younger selves, and old baddies who should've stayed dead are back alive again.
It's easy for the being who sculpted the sands of time to stay one step ahead of her enemies. But Cassie's newfound power hadn't been part of her design. The fight has been long, and not without losses, but they've gutted it out - victory is in sight. Kronika is now cornered, surrounded within her Hourglass Chamber by the realms' greatest heroes, who now have her all-important crown in their possession. But Kronika and her daughter Cetrion are not beaten yet - and defeating the former is more easily talked about than accomplished.
Cassie's body erupts with green light as she looses a Shadow Kick against the corrupted nature goddess. It's now or never - this one's for all the realms.