Pyke is a castle located on the island of the same name, which is one of the eight major Iron Islands. It is the seat of House Greyjoy, whose lord is known as the Lord Reaper of Pyke. The Greyjoys have been rulers of the Iron Islands since the War of Conquest. The Greyjoys claim the island is named after the castle.
Pyke is an ancient stronghold. It was originally built on a cliff jutting out into the sea, but over time the cliff has eroded, leaving the castle's towers standing on series of small, barren rock stacks, surrounded by water. Since there is no safe anchorage at Pyke, those who wish to travel there have to sail to nearby Lordsport.
The towers are connected by swaying rope bridges. The keep, its towers, walls and bridges are made of the same grey-black stone of which the rest of the island is composed. In the thousands of years the keep has stood, it has become covered with green lichen. A curtain wall encloses the headland of fifty acres and the cliffs around the foot of the wide stone bridge which extended out to the largest islet. The stables, kennels and livestock are located on the headland. The Great Keep, Kitchen Keep and the Bloody Keep each sit on their own islands. Towers and outbuildings are located on stacks beyond them, linked to each other by covered archways where the pillars stood close and by long, swaying walks of wood and rope when they did not. To get to the Sea Tower, one must cross three bridges, the last of which is made of rope.