A Song of Ice and Fire: Blood and Stone
Hammerstone was built to withstand the greatest of sieges, and there’s more to surviving a siege than high walls and sturdy battlements. Dug into the rock beneath the castle, a network of tunnels provide room for decades worth of supplies, kept well stocked at all times to allow the Tallystan line to continue even in the face of a years long siege. The long dead architects of the castle even managed to tap into a natural spring, providing a reliable source of water when leaving the walls is not an option.
The Hammerstone underground isn’t only home to storage spaces. Like many other castles, the rocky tunnels are home to the family crypts, stretching for what seems like miles. The bodies of all Tallystan lords and ladies are housed here, although several of the crypts were defiled during Roy the Ravenous’ rule.
Many sections of these tunnels remain uncharted, sealed behind ancient doorways which not even the heaviest of battering rams can break. Many rumours have spread over the years about the contents of these unexplored passageways, but those who know the truth of the matter are long dead, thank to House Tallystan’s founders.