Forged Destiny [Book 6: Ch. 9]

Great spikes of blue and white pierced up from the ground, one forcing me back lest it cut me in two. Another came into existence behind me with an almighty crack, brushing ice-cold mist across my face. The attack had missed. Or at least I thought so at first. Looking back, I realised I'd been cut off from the others entirely, trapped now in a winter wonderland with cliffs of ice blocking me from reinforcements. Judging from the alarmed cries of the others, they faced the same, our forces split by pillars and walls of ice.

Territory manipulation. Weiss' mother was a powerful Mage, one far above our level. She had the force necessary to shape the very battlefield itself. And I'd lost sight of her.

[...]

The ice tunnel I was trapped in twisted and turned, but I chipped lines into the ice to mark my path and never came across another, so it couldn't have been a circle.

—Forged Destiny [Book 6: Ch. 9]