Written by Geoff Johns; Art by Philip Tan, Jonathan Glapion, Ivan Reis and Oclair Albert; Cover by Philip Tan

A new chapter in the prelude to the massive BLACKEST NIGHT event is collected in this hardcover featuring GREEN LANTERN #39-42! A war of light explodes across the Vega System — and the Green Lantern Corps, led by Hal Jordan, must battle the bizarre Orange Lantern Corps and its leader, Agent Orange, possibly the most vile being in the universe. Plus, the Guardians' pact with the criminals of the universe is revealed.