India, Aug. 24 -- HBO's Lanterns has already begun putting its own spin on the Green Lantern mythology but Episode 2 introduces one detail that could have much bigger implications for John Stewart and the DC Universe. During a training session with Hal Jordan, John creates a hard-light bird construct that continues to exist even after he removes his power ring.

Green Lantern constructs are generally created and maintained through the power ring and the wielder's concentration. Once the ring is removed or the Lantern can no longer sustain the construct, it should disappear. Yet John's bird continues flying without the ring, immediately making his ability stand out.

So, what exactly happened? And does John's strange power suggest that he ...