Frost Wyvern is another catastrophic tier monster inhabiting the very core of the mirage forest. It was stated in the scrolls that they lived far away in the eastern region where cold environments can be seen. The view of this monstrosity seemed to polish that idea as truth since Frost Wyverns never wakes up during summer. The scrolls that were handed down were probably their way of warning adventurers to not cross the winter regions if they don't want to encounter a dragon capable of freezing their way.
"Unlike us, when the wyvern is hungry, it can smell everything even from a couple of kilometers away. Staying in the cabin won't help us as it can destroy it. I think I don't need to remind you guys this but most of the monsters living inside this forest are intellectual for some reason. The wyvern on its own is not an exception." Tasha said while they are trekking an inclined white hill through the west.