'The circus is coming to Milk Bay and with it comes mischief - just in time as, with no cases in sight, David's inner detective is getting desperate. So when a circus performance goes wrong and a magician disappears - along with the circus takings - David sees a chance for some real detectiving. He and Bernice need to track down the magician, and fast. But finding a master of illusion might be harder than they first thought...' (Publisher's blurb)