Avengers (1963) #273

Black Knight 25th Anniversary cover – Avengers: Under Siege: Part 3 of 8 – “Rites of Conquest!” Script by Roger Stern. Art by John Buscema (breakdowns) and Tom Palmer (finishes). Cover by Tom Palmer.

The forces of evil are gathering! Baron Zemo II has assembled a team of powerful super-villains to accomplish something his late father never could: Destroy the Avengers! With Earth’s Mightiest Heroes out on the town, Zemo’s Masters of Evil attack Avengers Mansion!

32 pages Cover price $0.75.