Editing Book

D'ni '''Books''' appear fairly ordinary, but are specially constructed to transport a user to another world, or [[Age]] in D'ni parlance.  The method for creating D'ni Books was a closely guarded secret, dating back to the discovery of [[the Art]] on [[Garternay]].  The D'ni based their entire culture and industry around the Art, and the Ages they could access through their books.

== Features ==
D'ni Descriptive Books feature a complete description of the Age.  A Descriptive Book must be written first in order to establish a [[link]].  D'ni Linking Books are smaller and usually contain references to the Descriptive Book.  All books however have the same basic features.  They are usually leather bound, and feature a Linking Panel on one of the pages.  Touching the linking panel will transport the user (and anything they are carrying) to the Age.

=== Linking panel ===
The linking panel is a rectangular "window" which shows a visual depiction of the Age to which the Book links. They can be located anywhere in the Book, but are typically found at the beginning for ease of access. Some Books, like those used in the [[Nexus]], have a panel in the middle of the Book, possibly to facilitate more even wear on the Book's spine over many openings and closings.

Contrary to evidence in the ''Myst'' games, sound cannot travel through a linking panel, nor can someone on the other side see "out" of the panel as though it were a floating window.

=== Gateway image ===
The image in the linking panel is referred to as the "gateway image". This image is often moving, though the way it moves is not universal, and some images don't move at all. In some, the image's viewpoint orbits around the link-in location, while in others it flies through the surrounding area in a loop. Some images go through a fly-by before settling into an orbit, or even coming to a complete rest.  If an Age or Link becomes unstable, the gateway image can degrade in clarity.  The gateway image on [[Riven]]'s Descriptive Book became distorted as the Age's collapse became imminent. A book that has been damaged, such as by missing a page, may also have a distorted or blank gateway image.

== Types of Books ==
=== Descriptive Book ===
[[File:Riven_descriptive_book.jpg|thumb|The [[Riven]] descriptive book.]]
A '''Descriptive Book''' is where a Writer fully describes the Age to which they wish to link. These volumes are typically very large, with a considerable number of pages, suitable for the extensive descriptions needed to craft a stable link. There can only ever be one Descriptive Book for an Age. Because ''regestoy'' is capable of accessing the infinite possibilities of the [[w:Many-worlds interpretation|quantum mechanical multiverse]], it is highly improbably (though not strictly ''impossible'') for two Descriptive Books to ever link to the same Age, even if their descriptions match exactly.<ref>Email, RAWA. "[[Reference:RAWA/1997 Lyst posts#Re: More linking issues|Re: More linking issues]]". 1997.</ref><ref name="RAWA 1998" /> There are always too many variables left undefined to guarantee that a link is forged to the same place twice.

Because Descriptive Books contain the only full copy of an Age's description, they were typically heavily protected by the D'ni. Damaging or altering a Descriptive Book could cause the Age to become unstable, shift the link to a similar but distinct Age, or even cause the link to stop functioning altogether. For this reason, the Books typically found in public libraries were Linking Books (see below), while the Descriptive Books were kept in a more secure area.

=== Linking Book ===
Typically, the term '''Linking Book''' refers to a smaller book which references an Age in some way, but does not completely describe it the way a Descriptive Book does.  A Linking Book will always link to the exact spot where it was written, though it must be written on a stationary surface.  Books written on moving platforms will not function, as evidenced by [[Gahreesen]]. Though a Linking Book requires some sort of connection to the Age's Descriptive Book, a Writer doesn't need to know anything about the Descriptive Book in order to write a working Linking Book.<ref name="RAWA 1998" /> It is not presently known what exactly needs to be written into a Linking Book. However, if a Descriptive Book is destroyed, any Linking Books connected to that Age will cease to function.<ref>Email, RAWA. [[Reference:RAWA/1998 Lyst posts#Thursday, July 23, 1998|Archived message to the Riven Lyst]]. July 23, 1998.</ref>

While an Age can have only one Descriptive Book, an unlimited number of Linking Books can be written for an Age.  Since Linking Books are smaller and more portable, and the destruction of a Linking Book doesn't affect the Age, Linking Books were the more commonly encountered books in D'ni.

The term '''Linking Book''' has become something of a catch-all for any kind of Book. This can lead to some confusion when trying to interpret historical accounts, as it is sometimes unclear whether the object being described is a Linking Book or a Descriptive Book. 

== Manufacture ==
Books were made from specially-formulated paper, using a recipe that was closely guarded by the [[Guild of Books]]. This paper was then bound into a hardcover leather volume using another special process, creating a blank Book, or ''kor'nea'' (<dni>[[Dictionary:Kor'neeah|Kor'nEa]]</dni>). These Books were then given to the [[Guild of Writers]], who used them in ''[[regestoy]]''—the Art of writing Ages.

The ink used to write Books was also special, and its formula was held by the [[Guild of Ink-Makers]]. The complete ingredient list is unknown, but there is evidence to suggest that one of them was crushed [[scarab|scarab beetle]]s. 

The precise processes for manufacturing Books is currently unknown to humanity, despite years of research by the [[D'ni Restoration Council]]. However, the practice does still survive on [[Releeshahn]], amongst those D'ni who survived the [[fall of D'ni|destruction of their civilization]].

== Using a Linking Book ==
Using a Book can be a disquieting experience:
{{quote
| text = <p>Atrus felt the skin on his palm tingle as though a faint electrical current had passed through it. His hand seemed drawn to the image on the page, ''attracted'' to it. For a moment that was all. Then, with a sudden, sickening lurch, he felt himself sucked into the page. Or rather, it was as if the page grew suddenly huge, enveloping him in the weave of its fibers. At that same instant he felt a curious shifting sensation. It felt as though he were melting, the fragile shell of him imploding, collapsing back in upon himself, and then the blackness seeped through.</p><p>And as he finally surrendered to that blackness, so he found himself back in his body, standing on the grass just in front of the mound, a fresh breeze blowing into his face, the stream below him, the waterfall and the valley just beyond.</p>
| source = ''[[Myst: The Book of Atrus]]''
}}

== Apocrypha ==
=== Origins ===
A tale describing how Books were first invented appears in the canceled Myst comic books—specifically, [[Passages|Myst: The Book of the Black Ships issue 0]]. In it, a D'ni Guild Master named [[Varsil]] developed them to solve a famine that had ravaged the D'ni people for two generations. This story has been declared apocryphal by RAWA,<ref>Email, RAWA. [[Reference:RAWA/1998 Lyst posts#Friday, July 24, 1998|Archived message to the Riven Lyst]]. July 24, 1998.</ref> as it conflicts in many ways with established D'ni history.

=== Trap Books ===
The games ''[[Myst (game)|Myst]]'' and ''[[Riven (game)|Riven]]'' depict a special type of Book called a '''Trap Book'''. [[Atrus]] describes these Books as ones where the link is partially severed, causing the user to become trapped in limbo between Ages. If another person uses the Book, the original user is displaced back into the originating Age, and the new user becomes trapped. The Red and Blue Books ([[Spire]] and [[Haven]]) in ''Myst'' and the Book used to capture [[Gehn]] in ''Riven'' are all Trap Books. However, this kind of Book does not actually exist.<ref>Email, RAWA. [[Reference:RAWA/2000 Lyst posts#Assorted ramblings... Very Long...|Archived message to the Riven Lyst]]. 21 June, 2000.</ref>

In a 2000 email to the [[Riven Lyst]] community email listgroup, [[Reference:RAWA/2000 Lyst posts#Assorted ramblings... Very Long...|RAWA explains]] that Trap Books were an invention that [[Cyan]] developed in order to simplify the gameplay of the first two games in the series. Historically, these would all have been [[prison Age]]s—Ages with no Linking Books in them—and the [[Stranger]] would have needed to rely on other kinds of information to successfully complete the tasks of freeing Atrus from his prison on [[K'veer]] in ''Myst'', and trapping Gehn in a similar prison in ''Riven''. Indeed, ''[[Myst IV: Revelation]]'' abandons the Trap Book notion entirely, and fully fleshes out the appearance of the Ages in which [[Sirrus]] and [[Achenar]] were imprisoned for almost 20 years.

== References ==
<references>
<ref name="RAWA 1998">Email, RAWA. [[Reference:RAWA/1998 Lyst posts#Monday, July 20, 1998|Archived message to the Riven Lyst]]. July 20, 1998.</ref>
</references>

[[Category:D'ni culture]]
[[Category:Linking mechanics]]
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	~~[[File:Voltaic book open.jpg\|thumb\|The [[Voltaic]] linking book, open to the linking panel.]]~~
	D'ni '''Books''' appear fairly ordinary, but are specially constructed to transport a user to another world, or [[Age]] in D'ni parlance. The method for creating D'ni Books was a closely guarded secret, dating back to the discovery of [[the Art]] on [[Garternay]]. The D'ni based their entire culture and industry around the Art, and the Ages they could access through their books.		D'ni '''Books''' appear fairly ordinary, but are specially constructed to transport a user to another world, or [[Age]] in D'ni parlance. The method for creating D'ni Books was a closely guarded secret, dating back to the discovery of [[the Art]] on [[Garternay]]. The D'ni based their entire culture and industry around the Art, and the Ages they could access through their books.