Hello, im doing the main questline i skyrim and i just finished the negotiation. Esbern told me i needed to kill Paarthurnax or he will no longer talk to me. I honestly dont care about the Blades and I will not kill him. Well the quest is optional and i will refuse to kill him. I want to progress through the main storyline but im kinda stuck. It says if you dont want to kill him continue on with the quest. But i need to learn a shout to call Odaviing. Where do i learn it from and how do I do it? PS DONT PUT SPOILERS!!!!!!!!!!!