Here's a bit of a heart wrencher. Spoilers for next week.
Spoiler!
Daenerys comes to their rescue with the 3 dragons after quite a bit of fighting and running. Apparently the Night King has enough of that shit and hurls an icicle spear and one shots Viserion. The end of the episode is the dead Viserion being pulled out of a lake and becoming the undead steed of the Night King(
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