From A Wiki of Ice and Fire
The newest castle in the Iron Islands, Ten Towers was built by Lord Theomore Harlaw, who blamed the deaths of three infant sons on the dampness of ancient Harlaw Hall, which often flooded. The new castle was built at a better site, but the mercurial Theomore constructed ten towers different in appearance. There is good fishing off the Long Stone Quay.
While growing up Asha Greyjoy felt more at home at Ten Towers than at the Greyjoy seat of Pyke. She enjoyed racing amongst Ten Towers' walks and bridges and reading in Lord Rodrik Harlaw's library.
The Main Hall
The main hall is the location of the high seat of House Harlaw. Above the seat, two giant scythes of beaten silver crossed hang.
The Widow's Tower
It is so called due to the presence of Lord Rodrik Harlaw's sister, Lady Gwynesse Harlaw, who came back to Ten Towers after the death of her husband and stayed for the rest of her life, grieving her loss.
The Book Tower
A Feast for Crows
Lord Baelor Blacktyde briefly visits Ten Towers before continuing on to Old Wyk. Supporters of Asha Greyjoy who assemble at Ten Towers include Botleys, Myres, Stonetrees, and Volmarks. Harlaw cousins supporting her include Boremund, Hotho Humpback, Ser Harras, and Sigfryd Silverhair.
After meeting with the steward Three-Tooth and her mother, Alannys Harlaw, Asha has the captive Lady Sybelle Glover and her children, Gawen and Erena, quartered in one of the towers instead of the dungeon. Asha meets her uncle, Lord Rodrik Harlaw, within the Book Tower. He offers to name her heir to Ten Towers, but Asha refuses and wants the Seastone Chair instead.
A Dance with Dragons
After Euron Greyjoy is chosen King of the Iron Islands in the kingsmoot, Asha flees from Old Wyk to Ten Towers. She leaves Gawen and Erena Glover at Ten Towers in the care of her mother, Alannys, and aunt, Gwynesse Harlaw, but continues on to Deepwood Motte with the captive Lady Glover.
|“||Not one castle, ten castles squashed together.||”|