Stone Brewing Co. (Escondido, CA) is following up yesterday’s announcement of Go To IPA with a new addition to the Quingenti Millilitre Series, Guardian’s Slumber.

Full details have not been released, as the name suggests – it may have something to do with their barleywine Old Guardian.

Update: Looks like three different bottles. As suspected, it’s 2013 Old Guardian Barleywine aged in bourbon barrels.