Viking raids took place for instance in 987 and 997 at Watchet and the Battle of Cynwit. King Alfred was driven to seek refuge from the Danes at Athelney before defeating them at the Battle of Ethandun in 878, usually considered to be near Edington, Wiltshire, but possibly the village of Edington in Somerset. Alfred established a series of forts and lookout posts linked by a military road, or Herepath, so his army could cover Viking movements at sea. The Herepath has a characteristic form which is familiar on the Quantocks: a regulation 20 m wide track between avenues of trees growing from hedge laying embankments. The Herepath ran from the ford on the River Parrett at Combwich, past Cannington hill fort to Over Stowey, where it climbed the Quantocks along the line of the current Stowey road, to Crowcombe Park Gate. Then it went south along the ridge, to Triscombe Stone. One branch may have led past Lydeard Hill and Buncombe Hill, back to Alfred's base at Athelney. The main branch descended the hills at Triscombe, then along the avenue to Red Post Cross, and west to the Brendon Hills and Exmoor. A peace treaty with the Danes was signed at Wedmore and the Danish king Guthrum the Old was baptised at Aller. "Burhs" (fortified places) had been set up by 919, such as Lyng. The Alfred Jewel, an object about 2.5 inch long, made of filigree gold, cloisonné-enamelled and with a rock crystal covering, was found in 1693 at Petherton Park, North Petherton. Believed to have been owned by Alfred the Great it is thought to have been the handle for a pointer that would have fit into the hole at its base and been used while reading a book.