The Kylver Stone is a historic burial stone that documents all the runes in the Elder Futhark alphabet. It was found in Sweden in 1903, during the excavation of a cemetery near a farm. When the Vikings ruled over certain parts of Scotland during the Middle Ages, they brought this runic alphabet with them. The town of Thurso in Caithness was founded by the Vikings in this era, originally serving as an important Norse port. The Thurso-based Wolfburn distillery, revived in 2013, launched The Kylver Series to honour this part in the history of their home. Wolfburn Kylver Series No. 2 was released in May 2017. The whisky was drawn from just three casks: two ex-bourbon barrels and a second-fill ex-Oloroso sherry butt, yielding a total of 1450 bottles. The second symbol in the Futhark alphabet is uruz, and represents the u-sound. Its name means ‘water’ or ‘wild ox’.