He often trots over to the south side of the island to stare with Giant Pety across the water at the small isle that signifies nothing to him, wondering what it means. Perhaps the isle use to house an important structure, perhaps a lighthouse, although there are enough of those around in the vicinity now to warn any ship coming in any direction. But in the past, say before Mystery fused with Misery to become Mistery, maybe circumstances were different. A special kind of lighthouse. Another green lantern. I only say this because Giant Pety himself emits a bit of green at nighttime.
Maybe we’ll never know.