Authors:

Spikes, " he sighed. "Heads. Walls.

George R. R. Martin (2011). “A Game of Thrones 4-Book Bundle: A Song of Ice and Fire Series: A Game of Thrones, A Clash of Kings, A Storm of Swords, and A Feast for Crows”, p.680, Bantam
Spikes,  he sighed. Heads. Walls.