Journey into Mystery #90

 "Arrest that costumed pest!"

This... may be the most inconsequential comic yet, more skippable Larry Lieber stuff, this time without even the art of Jack Kirby, even if on these stories he phones it in a bit, to make it better. Basically, it's neither good nor particularly interesting, and the Xartans (another alien race) will be making only token, novelty future appearances. In short... Thor, at this point, is not very good.

There's more of the tiresome love stand-off between Donald Blake and Jane, each afraid to declare their love to the other... although, this time, Odin officially orders Blake not to reveal his identity, which is unhelpful.

The baddies are, well, a precursor to the Zygons in Doctor Who in that their plan for world conquest involves an ability to impersonate people, as long as they hold the original person as prisoner. Their plan is bonkers, though- impersonate those in power, implement ridiculous laws, and they invade with their battle fleet in confusion!

This issue has the most bonkers ending yet. Thor throws the alien warlord into the sky, right into space so the battle fleet turns around and goes after him. As for the Xartans on Earth, it's the old Skrull cow trick again, getting them to turn into trees and, as trees, lose their sentience forever. Blimey, that's dark. 

But yeah, moving swiftly on...