What is Life?

I wish i was a mortal

Lisette Rose wanted to know who murdered her. So Albert and Irving must find the murderer and they met William.

Episode Summary
The episode starts,When Irving and Albert are watching a T.V Show and Lisette was trying to scared them. Irving screamed because of Lisette. Lisette felt sorry for what she did to Irving and ask Albert to find who murders her. Albert and Irving was on a mission to find Lisette's murderer. Albert and Irving goes to Phineas and Ferb and ask to build a airplane for them. So Phineas and Ferb build a Airplane and drive Albert and Irving to Paris,France. Few hours later,Albert and Irving finally arrived in Paris. They went to the Paris Graveyard and find the grave of Lisette. Meanwhile,They met and befriends to a vampire William Knight. They kept searching until they find the grave of Lisette. Albert find a piece of dagger on Lisette's grave,However there is a name "William" written at the dagger. Albert suspected that the vampire William might be the murderer. Albert and Irving return to Danville and they saw Lisette carrying a picture of her since she was mortal and saying that she wanted to be a mortal again. Albert give the dagger to Lisette and she remembers something. Lisette tells her mortal life to Albert and Irving. Unless William interupted the talk. William tells Lisette he was the murderer because Lisette's mother wanted to kill Lisette. Lisette forgives William. William was in love with Lisette when they were mortals. The two shared a kiss and Lisette thank Albert and Irving for finding her murderer. The episode ends,when Albert and Irving return back to there home.

Allusions

 * Adventure Time - The episode was reference to Adventure Time episode "Ghost Princess",However the scenes were not same.
 * Marié Antoinette - In Lisette's flashback. Lisette tells her mother that someday she will be the Queen of France. The scene is similar to the 1938 movie Marié Antoinette.