Was this DC's greatest house ad of the 70s? It's one of the first one I remember, and it still intrigues me to this day. I don't think I had ever seen so many characters crammed onto a single page. I am not sure how for how long this ad ran, but I it showed up in quite a few of the earliest books I remember owning. I know that it was supposed to be announcing the short-live Adventure Line, but I was just as intrigued by the other image. I had never seen Deadman before, and he really stood out from the other heroes. I was not familiar with the Mystery characters, but they certainly disturb my young mind. I became quite familiar with the Adventure Line characters at a early age because these books were regular habitués of my local comic shop's 10 cent rack, as well as the comic box in my grade school's rainy day room. This ad made me very curious about the Avenger and the Stalker, and those remain my two favourite titles from this fun line of comics.