When you have a dream about Varys and Littlefinger having a verbal sparring match and ending up with Varys shanking Littlefinger. GET OUT OF MY HEAD
swear to god, i had a dream that i was having a conversation with george rr martin about him starting to write the 6th book and he was like Spoiler yeah i dont know how much tyrion is going to be in it, i might kill him him off. [book 5 spoiler] and i was like wtf george, you cant do that and he was like yeah but writing his part was a bitch the last book. woke up and was like wheres my book, gotta finish Edit: added spoiler tag because not everyone knows that person lives/dies in the series
its not anything that happens in book 5 just a character name that if people on book 1 or whatever knew was in there they would know he didn't die over the first 4 books