The Flash Vol.2 #124
Lex Luthor, Kobra and Vandal Savage all receive rings at the same time. Each of them wears the ring, which bears a holographic message from a man named Mr. Frost, in which he offers to demonstrate some new technology he is selling by killing the Flash.
Flash is running through his new city, Santa Marta, California. He sees a burning building and runs to it. Noting that there is no smoke, he quickly surmises that the fire is not real. He shouts to the civilians that the fire is not real and discovers that neither are they and nor is the building. The building disappears and a hologram of Mr. Frost appears, taunting the Flash.
Estimated Condition: VF/NM (Used)