Spit can't fix slit stomach

Larten fought another two vampaneze, one of whom knew Randel
Chayne but hadn’t seen him in over a dozen years. The one who had known
Randel was a hard, experienced warrior and treated Larten to his toughest
test so far. He wounded the vampire seriously and almost opened Larten’s
stomach with a swipe of his nails. Larten triumphed, but only barely, and
Arra needed to stitch him together afterwards—their spit wasn’t strong
enough to close all of his wounds.

***

The Saga of Larten Crepsley: Brothers to the Death, Chapter 12