Mystery the Dog

Mystery is Mystery Ben's self Insert goof-ball mascot animal. His character is similar to that of Scooby-Doo from the American animated television series Scooby-Doo.

Personality
Mystery seems to be in favor of the adventuring the Mystery Skulls do. However, when him, Vivi and Arthur enter the mansion, he appears to have a healthy amount of fear, as well.

In the cavern, Mystery seems to realize very quickly that something is not right (the look on his face as the group enters the cave implies this). This suggests that he is clever and perceptive, as well as intelligent. He seems to have good instincts that told him to follow Arthur and Lewis instead of Vivi.

He is secretive, using an illusion or a form of shapeshifting to hide his true form and pretending to be a dog for an unknown reason.

Different sources will say that kitsune, once they have learned to trust and be close to a human, are very loyal and will protect them, something that is very likely to be true in this case given the circumstances.

Relationships


Vivi is a fellow team member of Mystery's, as well as his owner. Given the above mentioned traits of kitsune one can assume that the two of them are close friends. In the cavern in which Lewis died they are about to take the same path.

Arthur is also a member of the Mystery Skulls and thus one of Mystery's friends. The night Lewis died it was Mystery who prevented whatever was inside the cavern from spreading through Arthur's entire body by tearing off his arm.

There is not much known about Lewis' and Mystery's relationship. Before Lewis died they were members of the same team and seemed to be friends.