Assassin’s Creed Single Duvet Set: What is it? Serve the light, or turn it off & snooze? The choice is yours with this Assassin’s Creed duvet cover! About the product This Assassin’s Creed ‘ Serve the Light’ single duvet set is officially licensed & features a reversible, 2 in 1 design. The front features the assassins & the phrase, ‘ Work in the dark to serve the light’ while the reverse features a design inspired by the brotherhood. It’s for a single size duvet & the pillowcase is included. Why you should buy it The assassins of the brotherhood are a fine sleeper cell that operates under cover… or, at least, they are when they’re under an Assassin’s Creed duvet cover!