Nothing. They stay in the game to be joined after the quest.
Go to the companions in Whiterun and do all there quests they will offer to turn you
In Jorvaskr on the east side of the city's Residential district.
You have to go to the Companions in Whiterun. After a few quests they will turn you into a werewolf.
Whiterun, it's the Companions meadhall, Jorrvaskr.
Go to Whiterun and join the Companions. The offer of becoming a Werewolf is part of their quest line.
It's right next to the stables.
Join the Companions in Whiterun and do a few of their quests. Probably about the fifth quest you will have access to the ability.
You can find Aela the Huntress in Jorrvaskr, Whiterun. She is usually outside in the back, talking. She is with the companions and if you join them, you will find her more easily. Or, you can find Aela just outside Whiterun, in a farm where she and two other NPC's ( Non Playable Characters) will be fighting a giant. Hope I helped
None of your companions can die if they are following you, but they can die if they aren't. An example would be if you are in combat and you tell her to part ways and she gets killed by the person or creature attacking you because she stopped following you. I used "she" because I am referring to Lydia, your bodyguard you get from Whiterun for being the Thane.
Yes, you can. The Jarl will be in different locations depending on who you sided with, but the Whispering Door quest can still be started.
By asking around in Whiterun. Usually you can just talk to a bartender in one of the inns and ask for rumors or information. This will give you the Miscellaneous Task "Join the Companions". You can talk to the leader of the Companions in Jorrvaskr, their base in Whiterun. Jorrvaskr is located in the small area in front of Dragonsreach. It is a large building to the east (in whiterun)
The Jorrvaskr in Whiterun