Problem - quest \ '\' Last duty \ '\' (The Elder Scrolls 5: Skyrim)

Hello everyone! After completing the quest The Last Duty, I left the tomb and returned to Whiterun. But when I returned to Jorrvaskr, I found neither Eila, nor Vilkas, nor Farkas. I waited a day, even tried to return to the tomb - all in vain. Question: Where did they go? I play version 1.1.
Thank you all in advance.