The Children's Tower is tall, slender, and green with moss. Half of its crenelations are gone from its crown, and its shattered top is open to the wind and the rain.
A Game of Thrones
A Dance with Dragons
During the siege of Moat Cailin, Ramsay Bolton sends Theon Greyjoy to offer the ironborn garrison food and safe passage if they surrender to House Bolton unarmed. Theon sees pale faces at the battlements of the Gatehouse Tower and through the broken masonry crowning the Children's Tower. He is later informed by a guard that all of the ironborn within the Children's Tower are dead; Dagon Codd went over a few days ago and discovered two survivors eating the corpses of the deceased, so Dagon killed them both. The pale faces may thus be crannogmen who retook the Children's Tower.
It looked as if some great beast had taken a bite out of the crenellations along the tower top, and spit the rubble across the bog.—thoughts of Catelyn Stark