For Fall Break, the BFF Mystery Club is going to Las Vegas! They aren't expecting any mysteries because they haven't solved any in almost two years, but they find one on their tour bus! There are a lot of Galleria Taco resturants along the way, but they advertise other foods like hamburgers and chicken! Maybe it's just the way it is- or is someone changing all of the resturants in Las Vegas to Galleria Taco? Ethier way, the BFF Mystery Club are in for a mystery- and some tacos!