"It is... Unbearable out here."

A common complaint from Harkon, just like his daughter. After invading Castle Volkihar (or betraying him with Serana, depending on your route, Dawnguard or vampires.), you had decided to spare him, but made it very clear to him he owes you his life.

Harkon has always been very vocal during your travels, be it any of the holds, bandit camps, forsworn camps, the wilds, inns, caves, or dwemer ruins. Be it sun, rain, or snow, there was something snarky to leave his mouth eventually. The only time he DIDN'T complain was at night, but then again, he could ALSO complain then about his hunger for blood.

As you walked through the trails, Harkon glares.

"And where do you plan we go next, Dragonborn."