The supposed kinsmen Deljan and Alousianos, despite mutual suspicions, set up a system of double rule. However they continued to plot against each other, but Alousianos proved the shrewder player. After his embarrassing defeat at Thessalonike, he conspired with his companions and invited Deljan to dinner. When the latter was drunk, he attacked him with a cook's knife, gouged his eyes out and cut off his nose. He did this without his countrymen's intervention, so that the mutilated Deljan was arrested by Michael IV and sent to Thessalonike. Bulgaria's dyarchy then ended and the country returned to single rule. A small role in the rebellion was played by a monk from Galesion, who encouraged Deljan, then advised a loyal general to make a disatrous attack on the Bulgarians on a Sunday