An Interesting Question

Everyone knows Mace Tyrell is a fool. The Fat Flower of Highgarden, an oaf who stumbled into power and lets his formidable mother run the Reach from behind his chair.
Everyone is wrong.
When the Tyrells embark on an unprecedented journey north—ostensibly to visit the legendary Wall—they bring more than wagons laden with grain and steel. They bring questions. Particularly about a certain bastard boy raised alongside the Stark heirs, treated with far more care than any lord's indiscretion should warrant.
But the North keeps its own counsel, and Eddard Stark has survived a rebellion, kept his secrets for fourteen years, and will not yield them easily—not even to the cleverest roses the South can grow.