Thor #225 Jul 1974
First appearance of Firelord in "The Coming of the Firelord!"
Thor commands Mjolnir to return to him, and so it must;
Hercules returns with the body of Holmes,
and in drawing close, the spirit returns to his body;
While Thor changes back to Blake to check on Krista, Firelord arrives on Earth, and at the selfsame hospital;
Hercules and Firelord begin to battle, and Blake's cane is knocked out a window; Blake races to the ground
and changes to Thor, and then he stops the battle, realizing who Firelord is - herald to Galactus;
Firelord then summons Galactus, and Galactus plans to feast this day.
Script by Gerry Conway,
pencils by John Buscema,
inks by Joe Sinnott