DC continues to make efforts to round out the mythos of its characters, this time focusing on a non-Superman related one. In Wonder Woman #107, they give the newly introduced Wonder Girl her costume and she meets her first non-Amazonian supporting character: Mer-Boy. After Wonder Girl studies herself in the future using a “Time and Space Televisor” she asks her mother for a costume, and the Amazons design her one and make her go through challenges to retrieve parts of it, with Mer-Boy getting caught up in the mix.
I guess this is the first time they have shown an Amazon meeting an Atlantean?