GREEN LANTERN #9 CGC 2.5 (2ND APP & 1ST COVER APP SINESTRO)
Title
After Green Lantern's power ring fails on him fighting crimes on Earth, figuring there is something wrong with the charge, he returns to the Ferris Aircraft Company to recharge his ring. He falls right into a trap laid out by Sinestro, who has a power ring of his own and uses it to freeze Hal in place. Sinestro explains that he made the ring -- which siphons power off power ring energy -- before Green Lantern imprisoned him during their last battle, and used it to escape the prison he was placed into. Trapping Hal in a energy cage, Sinestro then uses his ring to change his appearance to look like Green Lantern, as part of a plot to destroy the Guardians of the Universe.
Infiltrating a meeting of Green Lanterns from various sectors of space, "Hal Jordan" creates a menace for them to destroy with their power rings, little knowing that their "ally" is siphoning the energy from their power rings that he needs to attack the guardians. With his mission a success Sinestro leaves, dropping his disguise, to attack the Guardians on Oa.
Meanwhile, back on Earth, Hal manages to free himself from Sinestro's cage when he realizes he can harmlessly pass through it if he's not wearing his Green Lantern uniform. Traveling to Oa, Hal spots Sinestro trying to break through the barriers that protect the Guardians home. Attacking Sinestro, the two engage in a battle of power rings, however Sinestro keeps on drawing power from Hal's power ring. Coming up with an idea, Hal feeds Sinestro more power than his ring can handle, causing it to explode in his hands. Defeated, Sinestro is subdued by Hal until the other Green Lanterns arrive. Recharging their power rings, the entire group combine their powers to trap Sinestro in a capsule and send him off into space.