Marvel's controversial Secret Empire event is over. Was it worth it? - Polygon
Secret Empire (organization) - Wikipedia
Comic books in 'Secret Empire (Marvel)'
Secret Empire (2017) #1 | Comic Issues | Marvel
Secret Empire (2017) #4 | Comic Issues | Marvel
Secret Empire, explained - Polygon
Marvel Comics & Secret Empire Spoilers: Secret Empire #3 Has 2 Heroes Turn Hydra As Mystery Of 2nd Captain Steve Rogers Deepens? Which One Is #Stevil? – Inside Pulse