Ramsay and Reek had killed Theon – they’d drowned him in fear. But there was a saying from his homelands: what is dead can never die. So Theon reclaimed himself, and it was Reek’s turn to become uneasily subsumed.
Reek died harder – the smell scoured away with snowmelt, and his hair might grow back right and his skin lose the grey of malnourishment and mistreatment. But there was no bringing back the parts of Theon that Reek had given Ramsay for a taste of respite.
What is dead can never die, but could he come back harder and stronger? Could Reek?