The Avengers #116

"The Avengers vs. the Defenders Chapter 2: Betrayal!" 

This is a continuation of the story started in Defenders #8... The Avengers have traveled to Dr. Strange's Sanctum Sanctorum seeking work with Dr. Strange, however all attempts to get inside have been met with resistance both from Dr. Strange's manservant Wong, and the mystical protections cast upon the house.  Fearing being double-crossed by Dormammu, and figuring if he would take over Earth, Asgard could be the demon's next target, Loki decides to seek the aid of the Avengers. Appearing before them at Avengers Mansion, Loki explains to the Avengers that the Defenders are seeking out the fragments of the Evil Eye for sinister ends, and so the Avengers split up into groups to intercept each member of the Defenders in hopes of stopping them.

And... "Chapter 3: Silver Surfer vs. the Vision and the Scarlet Witch" - Seeking a fragment of the Evil Eye, the Silver Surfer arrives on the island of Rurutu, French Polynesia. There he is worshiped by the people as if he were a god. He learns from the people that they offer sacrifice to a volcano god and deduces that is where the fragment of the Evil Eye must be located.  As the Scarlet Witch and Vision arrive on the scene, an accidental volcanic eruption caused by the Surfer badly injures the Scarlet Witch.  Enraged, the Vision engages the Surfer in battle!