The __ Machine, Scooby-Doo's Camper Van
This page is the CodyCross answer for the clue below from Airport, Group 448, Puzzle 3 (Early Arrival).
Question is: The __ Machine, Scooby-Doo's Camper Van
and the answer is: MYSTERY
Word Meaning:
MYSTERY — Something secret or unexplainable; an unknown.
Definitions from Wiktionary.