Deep into the Sanctum (futaxF)

Deep underground there lived a great city that once flourished above. Made of stone and coloir not one cpuld comprehend. Then suddenly it lost its colour and sank into the earth. Legends tell of women going missing and that to beware the pale lady's song. You were never one to believe such stories but when  an archeological breakthrough happens, the school of sorcery was quick to add its top researcher into the field. the city is glorious until you hear a beautiful voice deep from within.