The Avengers, Vol. 1 #290A (Marvel Comics 1987)

This 36-page 1987 Marvel release serves as the definitive conclusion to "The World According to the Adaptoid!" saga, capturing the team's struggle against a planetary-scale android replication scheme over four tightly paced installments.

The narrative zeroes in on Hydro-Base, where the Supreme-Adaptoid has seized control following the banishment of the cosmic entity Kubik. With five billion replica units preparing to overwrite human consciousness, Kubik diverts raw reality energy to summon Captain America. Steve Rogers engages his original mechanical nemesis in brutal hand-to-hand combat, providing a critical window for the remaining members to break through their underwater isolation. Machine Man makes a supporting guest appearance, while collectors seeking deeper roster history will spot cameo references to Stingray, the Fixer, and Mentallo.

Demand for this issue rests heavily on its finished creative package: plots by Mark Gruenwald and Ralph Macchio, scripting by Macchio, visual storytelling by John Buscema across preliminary breakdowns, and pen work by Tom Palmer on both interior layouts and cover artwork. This volume permanently documents a distinct mid-decade Avengers configuration featuring Black Knight, Captain Marvel, Doctor Druid, She-Hulk, and Sub-Mariner alongside Rogers.

• Historic Pricing Tier: Printed at the final $0.75 cover rate before widespread direct-market adjustments
• Continuity Bridge: Establishes Kubik's immediate post-issue trajectory toward Fantastic Four #319 and #336
• Self-Contained Climax: Delivers a fully resolved multi-part thriller without requiring separate tie-ins

Grounded in complete internal storytelling rather than crossover dependency, this standalone issue functions as an essential archival entry for collectors targeting late-1980s Marvel serialization or specific character rosters.