Green Lantern #153 - The Secret of the Starcycle! / The Choice!

When Hal tries to stop a de-evolution bomb from being detonated in the atmosphere, he uncovers the mystery surrounding the evolutionary marvels of the people of the planet M'Brai. However Hal's attempt to stop the planets three races from continuing their ongoing war, may blind him to the planet's true danger.

TALES OF THE GREEN LANTERN CORPS

Jeryll's people endure terrible loses at the hands of invading slavers. In response the people nearly forsake there centuries old commitment to non-violence and take up arms against their attackers. Seeking to spare her people this shame, Jeryll attacks the invaders with brutal ferocity. Her planet saved, Jeryll exiles herself from her planet as punishment for feeling joy