Promised Pen (Anime)

''This article is about the Anime version of the Promised Pen. For alternate pages referred to by this name, please click any of the icons above.''

The Promised Pens are objects possibly made by William Minerva, which were either left behind at certain places or given to certain people for the orphans from Grace Field to have the chance to find a safe place in the form of Shelter B06-32.

Appearance
The pen cap is plain silver and body of the pen has a silver and gray checkered design with the tiny letters W.M. written on the end of it. The body of the pen slides open revealing a hidden compartment with the letters B06-32 written on it. The hidden compartment also projects a virtual map which tells the user what their current location is.

Function
The pen has at least 5 known functions:
 * Location: When the hidden compartment of the pen is opened, it projects a virtual navigation map for the orphans to find their way in and out the Grace Field House. It also shows their location outside the orphanage.
 * A key: The pen is the only known key to enter the secret Shelter B06-32 underground.
 * Codes: The pen contains multiple unknown codes and messages.
 * Writing: The pen cannot be used to write with.

Promised Forest Arc
After the children escape from Grace Field, they discover that the Promised Pen has Morse code on the virtual navigation map which translates to "Touch Me". After touching the map, a box pops up with a virtual keyboard and the numbers "13-18-02". The children then realize they need to type a password into the box and that the one book from Grace Field's library that contained Minerva's owl bookplate but had no Morse code contains the password. By opening the book to page 18 and going to line 18, the second word is "Human" which turns out to be the password. After entering "Human" into the box a message from William Minerva telling the escapees to head to B06-32 is revealed.

The Map
The pen serves as a navigation map for the orphans to find their way in and out the Grace Field House. It gives clues on where to go in certain codes. As per the Promised Pen, the Demon World is theoretically divided into four areas, with Grace Field House as the origin point. Going clockwise, they are labeled A, B, C, and D. The pen also tells the user their current position on the map in the form of coordinates made up of a single letter followed by two numbers, a dash, and two more numbers. The letter indicates the user's current area on the map, while the numbers on the left side of the dash indicates the distance north-south and the numbers on the right indicates the distance east-west. For example, B06-32 means area B, 06 degrees south and 32 degrees east.

0-Area

 * 00-00 is where the Grace Field House is located.

A-Area

 * Unknown

B-Area

 * B01-14 is the place where the children ran off to after they escaped from Grace Field.
 * B06-32 is the location of the underground Shelter B06-32 in the Demon World.

C-Area

 * Unknown

D-Area

 * Unknown

Anime and Manga Differences
In the manga, the Pen Cap is found by Emma and Lucas hidden in a desk drawer in the cabin on the golden lake at Goldy Pond after solving a riddle by William Minerva hinting at it's whereabouts. In the anime, the Pen Cap is given to Emma by Vylk who acquired it from an unnamed human he killed and ate years ago. Also in the anime, the Pen Cap contains a map of Grace Field and the cure to the Lambda children's excruciating headaches which is not the case in the manga.