I did the quest where I had to read the elder scroll in the time wound, but I seem to have lost Lydia in there, or at least she is invisible. I don't know how this happened.

I have tried everything to get my companion back to life;

- I have tried the resurrect command, does not work because Lydia is not dead.

- I have tried to get a new one, but they only say that I already have a companion with me.

- I have tried to move her around with the moveto command, she does move, but she still is invisible and can't move around by herself.

What should I do to get her back? If you want more information, please ask for it.

read here: http://www.uesp.net/wiki/Skyrim_talk:Alduin%27s_Bane#Follower_trapped_in_Time_Wound

article: 34.

Have you tried taking on another companion to see if Lydia is still active? This may force the issue, then look for her.

Try looking back in Dragonsreach. Whatever city you picked her up if you own a house check there.

Or try to revert to a previous save maybe ?????