A new case for the Blueberry Detectives – the madness continues. Rumor has it that a strange moose is roaming the outskirts of town, huge with a powerful antlers, which seems to dissolve into the fog as soon as one tries to approach it. A ghost moose that has now attracted so many curious tourists – thanks to sensational press reports – that even the "Hecht," the only and dramatically bad establishment in town, can get crowded at lunchtime. The musty holiday homes, which have been almost always empty due to a lack of tourists, are fully booked. Our detectives know, of course, that there are no ghosts, and certainly no ghost moose. The meticulous investigative work begins, without any supernatural nonsense, but with patience and keen observation, to find out who or what is behind it all.