GAME GUARDIAN NO FURTHER A MYSTERY

After the attempted assassination of younger Bran, Catelyn leaves for King's Landing to determine her partner, persuaded that the Lannisters ended up driving the try. On arrival, she's met by a former beau, Petyr Baelish, who tells her the knife Employed in the attack on Bran was his - right up until he misplaced it in a very wager to Tyrion Lannis