The Eyrie is one of the major castles in Westeros, seated by House Arryn. It is located high in the mountains near The Vale of Arryn and is almost impossible to storm or starve out. It was the home of Jon and Lysa Arryn and their son. In A Feast for Crows, the newest lord regent of the Eyrie, Petyr Baelish, abadoned the Vale, taking the little Lord Arryn and Sansa Stark, disguised as his bastard daughter, with him. The Eyrie is famous for its sky cells, which are prison cells set in the castle hundreds of miles in the air with a wall open to empty space. The floors of the cells are also sloped so that a sleeping prisoner can accidentally roll out of his cell. Tyrion Lannister spent some time in a sky cell after being capture by Catelyn Stark in A Game of Thrones.