WARNING: The following contains spoilers for Green Lantern #8, now on sale

The mystery at the heart of the current Green Lantern run has centered around the fallout of the attack on Oa. Robbing the Green Lanterns of their power and authority, the few Lanterns left have been dedicated to finding the truth -- but it turns out the culprit might be closer than anyone ever realized.

Green Lantern #8 (by Geoffrey Thorne, Crisscross, Marco Santucci, Juan Castro, Michael Atiyeh, & Rob Leigh) revealed a new prime suspect in the destruction of the Central Power Battery on Oa -- and it turns out it might actually have been an inside job all along.

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Koyos and Nemosyni with the Honor Guard Green Lanterns

The attack on Oa has been a seriously major blow to the cosmic corner of the DC Universe. Most of the Guardians have been left in a state of limbo after the attack, and the destruction of the Central Power Battery has taken away the powers of all but a handful of Green Lanterns across the cosmos. Jo Mullein remains one of the only Lanterns still active, and she's taken the lead into the investigation of what happened. Working with the Coluan representative to the United Planets known as Peya Fel, the two spend much of Green Lantern #8 examining records of the Guardians from shortly before the attack. Their search spreads light specifically on Koyos (the Guardian murdered in Green Lantern #1) and his fellow Guardian, Nemosyni.

It turns out that the pair were opposed to the recent new Guardians, and had been secretly working at their own behest against the intentions of their fellow Guardians. There's no clear indication of what they were doing or what they were fully planning. Two years before all of this, it turns out that Koyos had gone to visit Zerox, a world of Sorcerers (some of whom would later go on to attack Oa and kill Koyos). Meanwhile, Nemosyni ventured to the Earth for some unknown purpose. While Jo departs to deal with chaos on Oa, Peya continues her investigation -- and is on the verge of a discovery potentially tying Nemosyni to Qwardian weapons when Nemosyni sneaks up on her and blasts her with a wave of Green Lantern energy.

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Green Lantern Guardian Nemosyni

The fact that Nemosyni is up and moving  -- and powerful enough to knock out Peya with ease -- while the other Guardians are still caught in a pained limbo places her in a very suspicious light. The fact that she and Koyos were in opposition to the Guardians gives her an obvious motive for wanting them removed from the board, and makes her an apparent suspect in the attack in the first place. The destruction of the Central Power Battery would take someone with an immense wealth of power -- something like the energies controlled by the Guardians. Likewise, having access to the Central Power Battery is something only a Guardian would readily possess -- so having a Guardian be a prime suspect actually makes a lot of sense.

It's a potentially devastating revelation, as this would indicate a Guardian Civil War might be on the horizon. The Green Lantern Corps has already been splintered and scattered, and having the Guardians turn on one another (if they even survive their current state) could result in a galactic conflict that no one is truly prepared to contend with. The United Planets would likely intervene and throw even more chaos into the potential fight, only making matters worse by trying to impose some level of control to the situation. A rogue Guardian is always a major threat -- and it seems like Nemosyni might have been deadly enough to catch the entire rest of the galaxy by surprise.

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