Re: How to get the link to the second post?
Assuming that by ‘sec post’ you mean the second post.
Just the second post of any topic or a specific topic or … What’s the significance of the second post? What’s your plugin supposed to do? I’m asking because it’s easier to help someone if you actually know what they’re trying to do.
If all you want is a plugin that lists links to the second post of every topic, that’s different than say, one that lists the second post of topics about cabbages. They look similar, but they aren’t always 
