Ah – the power of Drupal is a thing of mysterious wonder. I'm adding a section on the website on tools and techniques. Tools first.
So, within Drupal, I create a blank, top level book. Call it 'Tools' and give it a bit of blurb. I can then add child items. Scissors, Ruler, Knife and so on. Drupal automatically links these together so that a menu call to Tools links to the overview page with an automatically created list of child pages – cool!
I've also been confusing myself by working on the Friends of Higham website which I've based on WordPress. The WordPress community is great. I posted a question on the WP forum and got a reply within thirty minutes!