Five is one of your adopted siblings in the academy. He disappeared 15 years ago.

Years later, the day of the funeral. They saw a big blue hole forming outside of the house. Klaus threw a fire extinguisher to it.

"How is that gonna help?" Diego said

"I don't know!." Klaus replied.

And then, 13 year old Five suddenly jumped out the blue hole and it disappears.

"Does anyone else see thirteen year old Five or it's just me?" Klaus said.