Board Thread:General Discussion/@comment-25926288-20161031005929/@comment-4260948-20161031015529

Liam probably met Nemo shortly after his father died -- they escaped the Dark Curse, either underwater or in an unaffected world, and aged. Then returned.

At this point, Emma has just stayed in Storybrooke, so time has begun -- Hook and Cora are NOT together at the beginning of S2; she's "imprisoned" and he's watching the island. To me that says that, while Hook was doing this, Cora was infiltrating the Safe Haven, maybe taking Lancelot's form at the same time.

Cora then summons Hook to meet her at the island, where we see Hook in season 2. The curse has just broken then.