Issue(s): Avengers #75, Avengers #76
Published Date: Apr-May 70
Title: "The Warlord and the Witch!" / "The blaze of battle... the flames of love!"
Credits:
Roy Thomas - Writer
John Buscema - Penciler
Tom Palmer - Inker

Review/plot:
After Janet and Hank announce that they are leaving the Avengers to study the effects of oil fields on Alaskan wildlife (in a press conference where Captain America has to tell the press to pay attention to poor Hank)(and wow, the oil/Alaskan wildlife conflict an issue even back in 1970?), Quicksilver returns to the Avengers. After the obligatory fight scene, Quicksilver explains that in searching for a way to restore the Scarlet Witch's powers, he, Scarlet Witch, and the Toad opened a portal to another dimension where a Conan type named Arkon came through.

He wanted the Scarlet Witch as a queen and he needed to trigger a nuclear war on earth in order to restore light to his own dying world. A full battalion of Avengers, including Thor, Iron Man, and Captain America, defeat Arkon and his minions. Wanda is rescued and Iron Man and Thor find another way to save Arkon's world, but the Toad seems to have been forgotten.

Arkon is depicted as not such a bad guy for someone who is willing to destroy an entire planet. He promises the Scarlet Witch that he'll make her powers return, although it doesn't say how.

The Black Widow breaks up with Goliath with no real explanation.

Quality Rating: C+

Historical Significance Rating: 6 - first Arkon. Scarlet Witch gets her powers back. Scarlet Witch and Quicksilver rejoin the Avengers. Wasp and Yellowjacket leave the Avengers. Black Widow breaks up with Hawkeye.

Chronological Placement Considerations: Needs to fit with Thor, Iron Man, and Captain America's books.

References:

• The Avengers last saw Quicksilver and the Scarlet Witch when they fled along with the Toad after their fight with the Avengers and the X-Men in Uncanny X-Men #45 and Avengers #53
  

Cross-over: N/A

Continuity Implant? N

Reprinted In: Marvel Super Action #36, Marvel Super Action #37

The Toad doesn't reappear until nearly exactly 5 years later in the same title, but his absence doesn't affect anything.