"The Super-Crisis That Struck Earth-Two!" and "The Negative-Crisis On Earths One-Two!"
The JLA and JSA fight people that have been possessed by the Black Spheres.
The stories can be found in Justice League of America #55 and 56 published in 1967. It is the first Silver Age appearance of the Earth-2 Robin.
Read more about this topic: Crisis (DC Comics)
Famous quotes containing the word struck:
““There are bees in this wall.” He struck the clapboards,
Fierce heads looked out; small bodies pivoted.
We rose to go. Sunset blazed on the windows.”
—Robert Frost (1874–1963)