he being the last and most important decoy, the magician's deceivious plan to burglarize the family's house under the guise of a simple children's magic birthday party was finally underway
misleading or obscuring the truth by means of cunning concealment
"he being the last and most important decoy, the magician's deceivious plan to burglarize the family's house under the guise of a simple children's magic birthday party was finally underway" What is the definition of "deceivious"?