Avengers (1963) #311
A group of mysterious robots infiltrate the Hydrobase! With the super-powered Avengers still in the Negative Zone, it's up to Quasar and the non-powered staff to defend their turf.
Published: 12/1/1989
- John Byrne, writer
- Bill Oakley, letterer
- Tom Palmer, inker
- Paul Ryan, penciler
- Nel Yomtov, colorist