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Pokémon Mansion journals

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The Pokémon Mansion journals are a series of diary entries written by a Pokémon researcher, chronicling the events that led up to the creation and escape of Mewtwo. They are scattered around the Pokémon Mansion in Cinnabar Island.

In the games

The Pokémon Mansion journals are only available in the Generation I games and Pokémon FireRed and LeafGreen, as the Pokémon Mansion has been destroyed along with most of Cinnabar Island by a volcanic eruption prior to the events of the Generation II games and Pokémon HeartGold and SoulSilver.

Journal entries

In the Japanese versions, the texts suggest that only the researcher is involved. In the localizations, the texts refer to a team of researchers.

July 5
Diary: July 5

Guyana, South America
A new Pokémon was discovered deep in the jungle.
July 10
Diary: July 10

We christened the newly discovered Pokémon, Mew.
February 6
Diary: Feb. 6

Mew gave birth.
We named the newborn Mewtwo.
September 1
Diary: Sept. 1

MEWTWO is far too powerful.
We have failed to curb its vicious
tendencies…

The Japanese text for the last entry reveals the author to be somewhat more emotional.

Japanese Translation
にっき 9がつ1にち

ポケモン ミュウツーは つよすぎる
ダメだ⋯
わたしの てには おえない!
Diary: September 1

The Pokémon Mewtwo is far too powerful.
It's no use…
I cannot control it!

Relation to Faraway Island

It is speculated that the Guyanese jungle where Mew was apparently discovered is actually Faraway Island. In the Japanese version of Pokémon Emerald, the message left on a signpost there contains a remnant of a signature belonging to a name ending in ジ (ji). The researcher who wrote these diary entries is speculated to be Mr. Fuji, who was known as Dr. Fuji back when he lived in Cinnabar Island and founded the Pokémon Lab.

In the anime

In Pokémon Origins

The journal

Red found the single Pokémon Mansion journal while visiting the Pokémon Mansion in File 3 - Giovanni, containing all the entries written by the researcher.

The journal was referenced again in File 4 - Charizard, where Red recalled finding out about the creation of Mewtwo from it. After telling Professor Oak about the journal, Red learned that the journal was probably the notes of Dr. Fuji, a former Pokémon expert whose research was dismissed soon after he had found a new species of Pokémon and tried to artificially create a new, powerful Pokémon. Professor Oak also realized that Dr. Fuji was likely the same person as Mr. Fuji.

In the original Japanese version of Origins, the texts remain the same as in the games. In the dub, they were altered, much like in the localizations of the games.

File 3 - Giovanni

Origins Games



A new Pokémon was discovered deep in the jungle.
Diary: July 5
Guyana, South America

A new Pokémon was discovered deep in the jungle.

File 4 - Charizard

July 5th
Origins Games
July 5th


Today, while on our journey through the densest part of the jungle, we were surprised to discover a new Pokémon.
Diary: July 5
Guyana, South America

A new Pokémon was discovered deep in the jungle.
July 10th
Origins Games
July 10th
We decided to name the recently discovered Pokémon Mew.
Diary: July 10
We christened the newly discovered Pokémon, Mew.
February 6th
Origins Games
February the 6th

From the potential within Mew, we have managed to create an entirely new Pokémon: Mewtwo.
Diary: Feb. 6
Mew gave birth.

We named the newborn Mewtwo.
September 1st
Origins Games
September the 1st

It has become far too strong. It is beyond even us now.
Diary: Sept. 1
Mewtwo is far too powerful.

We have failed to curb its vicious tendencies…


Project Games logo.png This game-related article is part of Project Games, a Bulbapedia project that aims to write comprehensive articles on the Pokémon games.