The object of the HotPot and TaskChain modules is to integrate Hot Potatoes activities into Moodle so that students' scores are converted into Moodle grades (and many other ways of controlling the way students work through the exercises). They're wonderful for that. If this is not what you want, try Mary's suggestion or mine. Both our suggestions mean that images, audio and video files can be included.
The Book activity is very easy to learn to use (much simpler than Hot Potatoes itself and the HotPot and TaskChain modules) but actually integrating each Hot Potatoes exercise is quite time consuming if you want a specific link to each exercise.