It is AD121 and Legate Maxinius's Twentieth Legion is becoming demoralised by the covert tactics of the Picts, rebel warriors coming down from the north of Britannia to incite trouble between the invading army and the local Brigante people. Fearing an uprising and with growing frustration at Rome's lack of support, the legate ignores orders from Emperor Hadrian to consolidate his position without advancing and decides, at the peril of his career, that his legion must act by flushing out the rebels, shattering the peace of the area in the process. Wall of Stone follows the fate and fortune of two legionaries from the Twentieth Legion which intertwine with those of a local Brigante family.
