The Holiest (слэш)

So when Aziraphale hears, through the grapevine, that an exorcism is supposed to happen on New Year’s Eve in Major Gruber’s flat, he knows that despite his general distaste for exorcisms, this is where he is going to be, on the slim chance that the demon Major Gruber and his spiritist friends have found is the same one Aziraphale appears to have lost.