Legion of Super-Heroes Vol. 4 (1989-2000) #89

Plot

In a Spark spotlight issue, the strain of being stranded in the 20th century begins to take its toll on the Legion members as two of them come to blows -- and one leaves the team! Also, Spark discovers something about herself while comparing her life in the 30th century to her new situation of being trapped more than a thousand years before she was born. Meanwhile, Brainy is behaving more strangely than usual. (mycomicshop.com)