uncommon ce tiny fey gremlin 

Perception +6; darkvision

Languages Undercommon

Skills Acrobatics +5, Athletics +5, Deception +4, Stealth +7

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

AC  16; Fort +6, Ref +9, Will +4

HP 18

Speed 25 feet

Melee [>] sticky fingers +7 (agile, finesse), Damage 1d4+1 piercing plus nasty ink

Eat Book [>>>] A scrit can consume a book after smearing its pages to absorb its contents (it gains no benefit from consuming a book with pages smeared by another scrit). For 1 day after consuming the book, the scrit can make Recall Knowledge skill checks on the book's subject with a +4 item bonus, and it can speak and understand the languages the book was written in. If it Eats another Book, it replaces the benefits of the previous Eat Book.

Nasty Ink (poison) A scrit's fingers are perpetually covered in smeared ink from the writing it's destroyed. This ink mixes with its skin oils to create a disgusting, sticky poison. Saving Throw DC 14 Fortitude; Maximum Duration 4 rounds; Stage 1 1d4 poison damage and sickened 1 (1 round)

Smear Text [>] The scrit rubs its fingers against one page of writing, smearing the text and rendering it unreadable. The scrit can smear and destroy magical writing such as a glyph of warding or a sigil by succeeding at a counteract check (using the scrit's spell attack modifier) against the caster's DC.

Strength of Thousands #1: Kindled Magic, page 82.