I don't know; that shipbuilder is kind of creepy and wrong.
I do look forward to seeing what kind of cat and mouse game/stockholm syndrome/manipulation type dynamic will develop between Ragnar and Athelstan. No fangirlish shipping, it's just that the potential for some great psychological material is there with Athelstan being a captive and all that. He's a repressed monk, though. The temptations of a hedonistic life may prove daunting.