[Plugin: Shadowbox JS] using single image to launch gallery (rather than thumbs)?

Let me add a few more details. I went back and looked at the post that worked, https://blog.tlinn.com/2011/02/moon-over-panamints/ , and I can see absolutely NOTHING different in the HTML from what I’m doing with the post that isn’t working. The whole thing just happened automatically. Now it doesn’t—although the previous post still works like it should. This is driving me nuts.

Well, I’m not exactly overwhelmed by the traffic on the support forum so let me answer my own question for anyone else who may run into this issue. The only reason I was able to display one photograph in my blog post (referenced above) that launched a multi-image gallery when clicked is because I had linked to the other photographs in the body of the post. Otherwise, it won’t work. Doesn’t it seem like this is something one should be able to do without the links?