The Assassin Angel had expended too much energy concealing his tracks.
He behaved like a thief ready to flee the island, flying upwards while drawing out his magic wand to point toward the heavens, attempting to open a Teleportation Gate to an unknown destination.
His posture was somewhat frantic and impatient, yet he never managed to open the Teleportation Gate in the night sky, as if waiting for something to arrive.
The actions of the Assassin Angel were related to the alternative plan he and Noland Lee had discussed earlier today.
The Assassin Angel was well aware that a Metal Ancestor Dragon, actually entering the Inner Cosmos in its true form, could easily find the thief's whereabouts.
It was absolutely necessary to mislead the Metal Ancestor Dragon, causing deviations in its investigative direction, to buy enough time for Noland Lee to proceed with the next Ceremony.