n tiny aberration 

Perception +11; darkvision

Languages Aklo, Common, Draconic

Skills Arcana +11, Library Lore +11, Occultism +9, Scribing Lore +11, Stealth +8

Str -2 Dex +3 Con +1 Int +4 Wis +4 Cha +0

Mage Bond After performing a 1-hour ritual, a scalescribe can bond with one willing creature capable of Casting Spells. The scalescribe can Aid their bonded caster in Crafting a scroll, and they can make their Transcribed spell available to the caster so long as the spell is of the caster's tradition. A bonded prepared caster can prepare the spell. A bonded spontaneous caster can add the spell to their spell repertoire during their daily preparations, and it remains as long as the Transcribed scroll exists.

AC  18; Fort +6, Ref +10, Will +11

HP 45

Transcribe [R] Trigger Another creature targets the scalescribe with a spell requiring verbal components; Effect The scalescribe attempts to copy the incantation onto a scroll by attempting a counteract check (counteract level 2, counteract modifier +10) with the following effects instead of the normal effects of counteracting. The spell still affects the scalescribe, regardless of the results of this check. The scalescribe can Cast a Spell from any scroll they Transcribe as if it were on their spell list. Transcribing a new scroll renders any previously Transcribed scroll inert. Critical Success If the triggering spell's level was no more than 3 higher than the scalescribe's counteract level, the scalescribe captures a copy of the spell in a scroll that appears in their hand. This scroll can be used normally but fades after 24 hours if not used before then.Success As critical success, but only if the spell's level is no more than 1 higher than the scalescribe's counteract level.Failure As critical success, but only if the spell's level is lower than the scalescribe's counteract level.Critical Failure The scalescribe fails to copy the spell.

Speed 20 feet

Melee [>] fountain pen +10 (agile, finesse, magical), Damage 1d6+2 piercing plus inkstain

Ranged [>] morpheme glyph +10 (evocation, magical, range 40 feet), Damage 3d6 force

Arcane Innate Spells DC 20; 3rd secret page; 2nd comprehend language (×3, self only), dispel magic; Cantrips (2nd) detect magic, message, read aura, sigil

Inkstain When the scalescribe deals damage to a creature with their fountain pen, the creature takes 1d4 persistent poison damage. When a creature taking this damage attempts to take an action with the concentrate trait, it must succeed at a DC 5 flat check or the action is disrupted.

Bestiary 3, page 226.