A custodian at St. James High School in Horry County called police about 10 p.m. Tuesday when he found writing on a bathroom wall that said "I'm going to bomb this school on November 30, 2011."
The Horry County Bomb Squad conducted a sweep of the school and didn't find any suspicious devices.
The Bomb Squad checked the school again Wednesday morning, and again, did not find anything.
The school is open.
