book box

[variableenigma.livejournal.com]

Does anyone know how to go about hollowing out a book? Basically, I just want to cut out the middle of the pages, so that there is a cavity there when you open it. I looked at the memories, but they all seem to be about how to glue the pages together, and I'm more interested in how to actually get the middle hollow. I tried using an x-acto knife to cut the pages, but it shreds them and makes a mess. (Not to mention that it takes forever!)

Any ideas?