Silverfish Swarm
Level -1Abilities
Action 1 minute A silverfish swarm consumes up to 1 Bulk of paper, cloth, or similar material. It can consume up to 4 Bulk each day.
This monster doesn't have a single mind (typically because it's a swarm of smaller creatures), and is immune to mental effects that target only a specific number of creatures. It is still subject to mental effects that affect all creatures in an area.
Each enemy in the silverfish swarm's space takes 1d4 piercing damage (DC 14 fortitude save). A creature that fails its save is Sickened 1.
Description
It's uncommon for silverfish to congregate in sufficient numbers to constitute a swarm, but forgotten libraries or similar out-of-the-way places might harbor a multitude of the voracious pests.
A common pest with a silvery carapace and an undulating, fishlike scuttle, the nocturnal silverfish infests homes and libraries throughout Golarion. These insects aren't typically dangerous, but their tendency to devour books and clothing often puts them at odds with larger creatures.