Thor #337 NM
Cover by Walt Simonson. Beta Ray Bill (first appearance) becomes Thor in "Doom!", script and art by Walt Simonson; Nick Fury asks Thor's aid in investigating an alien ship heading for earth; Thor arrives and triggers the awakening of an alien protector, Beta Ray Bill; Bill bests Thor and takes up his hammer only to be accidentally summoned to Asgard by Odin who thinks he is summoning Thor. Brief appearances by Nick Fury, Loki, Sif, Balder, Heimdall, Volstagg, and Odin. First appearance of Lorelei (sister of the Enchantress).