Ferb's mansion

Phineas and ferb were walking by a mansion, until a ghost takes phineas and kidnaps him into a mansion.

Ferb now goes inside the mansion, this is where the sky goes creepy now. Ferb was to wet up ghosts and try to save phineas from that creepy mansion.

After looking at the map on the first floor, ferb heads to the right side garage to get a flashlight. After that he actually hears something ringing from a car located into the left side garage, it was a mansion gps meter, it was a modified cuteness gps meter that was used in the chronicles of meal episode of the original Phineas and ferb series. He then heads up to the stairwell by the entrance but was replaced by an aquarium display. The door that leads to the backyard was locked, the key to get through was found in the graveyard, so he gets there through a window connecting to the graveyard. Ferb digs up each grave, 3 of the 4 graves he dug up ghosts of the deceased Phineas stein, ferb gore, and Constance and sprayed them to death. After fighting those ghosts, he found the key in the grave he did not dig up yet.

once ferb was close to rescuing his brother, an ambitious ghost as doofensmirtz appears and takes a fight with ferb, ferb then wakes up and realizes he just had a nightmare once he woke up at 3:15 am, phineas asks ferb if he's alright and said that ferb had a bad dream it seemed like, ferb explains to phineas what happened in his dream. phineas then told ferb to go back to sleep, but ferb wants to sleep in the same bed as phineas’.

Allusions
 * Luigi's mansion-the episode is exactly based off of luigi's mansion where ferb replaces luigi and phineas replaces mario.
 * orginal Phineas and ferb “monster of phineas and ferb n Stein”-ghosts ferb took down while in the graveyard were from the deaths of phineas Stein, ferb gore, and Constance which appeared in the monster of phineas and ferb n Stein.