The Wolf and the Seven Kids was created with Inform and has IFID C5C649A1-6210-4E9E-9944-67F89E31002E. To play a work like this one, you need an interpreter program: many are available, among them Zoom
for Mac OS X and for Unix; Windows Frotz or Windows Glulxe for Windows.
Or you can play without downloading anything by following the 'Play In-Browser'
on your web browser.