The Three Investigators and the screaming fog is an exciting result that fortunately resumes the wire to an old friend of the trio. Although I must confess that my sequence in which the four protagonists for the first time make like better - perhaps only in retrospect considered so - but that should not detract do subsequently.
One can easily see across, and thus makes it really fun to hear about the little substantive weaknesses / inconsistencies. Especially the design of the mist, as you would already "The Mist Mountain" from (- A barn with a lake view) knows, makes the whole exciting.