Things to do on March 15: – Drink amazing Estate at White Hall wine – Solve the mystery of who murdered Vivian – Possibly win one of two gift cards for being a super sleuth! King George High School Theatre Department presents “Mystery of the Loose Strings,” written and performed by KGHS Theatre students on Sat, March 15 (NEW DATE!) at 7 p.m. at The Estate at White Hall Vineyard, 3668 White Hall Rd, King George, VA 22485. All proceeds…