Magic Forums

Hi everyone I'm very new here and don't really know much about things however I'm hoping some one will be able to help me . My friend is a mechanic and he has just got a building to rent it is an old building and he has been sorting round today and he has found a little room at that back . We went in to investigate and etched in to the ceilin is a pentagram with what looks like symbols around it . I was then trying to figure out wether it was symbols or letters and so I read them aloud which then all the lights started to flicker ( however this could be coincidence) but my friend is really worried about this . Could anyone please give me more information please thank you xxx