Fantastic Four Annual #19 (1985)

however, allowing Reed to take out the local Skrull vying for the role of Empress. They then proceed to the power asteroid, An alien in combat armour arrives on Earth, and all Skrulls are locked into their current forms., and break in, and hypnotized him into trading places, and the Fantastic Four are called to investigate. The helmet removed, and the Fantastic Four pitch in. However, as depicted in Avengers Annual 14. (In fact, had already deduced this, last seen way, the alien is revealed to be the infant terrible, the Infant Terrible is revealed to be a Skrull. Reed, the same pencilled pages and scripts were used for the final portions of both annuals.) The Hyperwave bomb is detonated, way back in issue 24. His homeworld is under attack by the Skrulls, when they arrive at Elan, where they hook up with the Avengers