The Dream-Quest of Unknown Kadath
When Randolph Carter visits Atal in "The Dream-Quest of Unknown Kadath" (1926), he is the patriarch of the Temple of the Elder Ones and is now well over 300 years old, "but still very keen of mind and memory". After many draughts of moon-wine, he reveals an important piece of information that helps Carter in his quest. As befits his age and station, Atal sports a long beard.