Vampire boars driven insane

The pair had been permanent fixtures in the mountain for the past few
years. Both had passed their Trials of Initiation – five perilous tasks that all
vampires had to overcome – not long after they’d returned with Seba.
Larten took his Trials several months before Wester and sailed through, but
Wester almost failed. In his second trial he’d faced two wild boars that had
been driven insane with vampire blood. He managed to kill them, but one
speared him with its tusks before it died and he had struggled to complete
his last three trials.

***

The Saga of Larten Crepsley: Ocean of Blood, Chapter 10