 , 21 "Wild Cards" volumes had been published in the series; earlier that same year, Martin signed the contract for the 22nd volume, "Low Ball" (2014), published by Tor Books.In early 2012, Martin signed another Tor contract for the 23rd "Wild Cards" volume, "High Stakes", which was released in August 2016.In August 2016 Martin announced that Universal Cable Productions had acquired the rights to adapt the "Wild Cards" novels into a television series.