As the tome is opened, a blob of ink splashes toward the reader’s eyes, followed by mischievous giggles.

For those wary of prying eyes, a tiny construct made of ink can keep private journals, records of magical runes, or discoveries safe.

Tiny Guards. Created by wizards fearful of having their research stolen, bookkeepers are ink constructs bound to a designated book. They provide protection not just from unwanted intrusion but also from physical damage. The bookkeeper can move on its own when needed, but it spends most of its time hiding within the book it is assigned to guard.

Alarm. As long as the creator is on the same plane as the book, it is mentally alerted if the book is opened by anyone other than it. The book also shrieks if handled by anyone other than the creator. The creator does not set off any wards or alarms when opening its own book.

Construct Nature. A bookkeeper doesn’t require air, food, drink, or sleep.


Tiny construct, unaligned
Armor Class 12
Hit Points 5 (2d4)
Speed 20 ft., fly 30 ft. (while within the book)
8 (-1) 14 (+2) 10 (+0) 6 (-2) 8 (-1) 3 (-4)

Skills Perception +1, Stealth +4
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities either cold or fire (designated at the time of the bookkeeper’s creation), poison, psychic
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 11
Languages understands the languages of its creator but can’t speak
Challenge 1/8 (25 XP)

Between the Lines. As a bonus action while within 30 feet of its book, the bookkeeper can hop inside its book. While inside its book, the bookkeeper has a flying speed of 30 feet and is indistinguishable from ink on a page.

Book Bound. A bookkeeper makes all attacks, saving throws, and skill checks with advantage when its creator is within 60 feet of its book. The bookkeeper’s hp maximum is reduced by 1 for every minute it is further than 60 feet from its book. When its hp maximum reaches 0, it dies. If its creator dies, the bookkeeper can be convinced to pass ownership of the book to a new creature if the creature succeeds on a DC 13 Charisma check. The new owner becomes the bookkeeper’s new “creator” and inherits the bookkeeper along with the book.

Disintegrate. When the bookkeeper dies, the book it is bound to is also destroyed.


Ink Splash. Ranged Weapon Attack: +4 to hit, range 20 ft., one target. Hit: 3 (1d6) poison damage and the target must succeed on a DC 13 Dexterity saving throw or be blinded until the end of its next turn.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 1 piercing damage plus 1 poison damage.

Elusive Pages. While inside its book, the bookkeeper magically turns its book invisible until it attacks, or until its concentration ends (as if concentrating on a spell). The bookkeeper is also invisible while inside the invisible book

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