A whole chapter on digestive enzymes.  Diagrams of the thing’s fangs, which I had glimpsed as it devoured the mother cat, with labels for the reservoirs of venom that wasn’t true venom.  It was enzymes, much like the ones bugs used to dissolve their meals before supping them.  Notes suggested that the feature helped with the digestion of any and all food.

...

The pain was sharp, at first, droplets touching skin, immediately breaking it down.  Then it burned.

The horrible coldness was worse, because it suggested dying nerves.  All down my arms, and one side of my face.

I screamed.

...

I felt the burning stop as Lillian tended to me.  By the time she was done, the screams had stopped.  The powder that dusted me made it hard to see, but that was fine.  I was lifted to my feet.

Wildbow, Twig, 1.1