Forged Destiny [Book 9: Ch. 10]

Little black masses like worms that twisted and convulsed on the floor. One split open on its side and a tiny Grimm creature burst forth, tiny mandibles stretched as it screeched toward the sun.

[...]

A man roared in pain as one of the small insectoid creatures proved itself more dangerous than its size suggested, latching on and burrowing into an exposed piece of flesh between his shoulder and armpit. Its tail wiggled as it tried to dig into him, working almost half its body length inside.

[...]

I batted one aside as it lunged for me, hurling itself up off the floor with inhuman strength. It hit a wall and exploded.

[...]

A hiss and a screech was my first warning of the boy's pursuer. I caught the horrible little thing in my hand and winced as it bit down, instantly trying to burrow into skin. A brief flash of Stoke the Forge put an end to that.

—Forged Destiny [Book 9: Ch. 10]