I've got a general website (we'll call it topicdomain.com) and I want to have a secondary domain (specifictopicdomain.com) point to a page on my site (topicdomain.com/subtopic/specifictopic). I don't mind that all the links will still have the original domain, I just want the user to be able to visit specifictopicdomain.com without redirecting.
Any thoughts? Thanks in advance, my WordPress brothers and sisters. :-)