Answer: The purpose of the line defines that something bigger and more challenging is ahead than what Adrian has faced earlier.
Step-by-step explanation:
The word ferocious would be defined as something that is cruel or far more dangerous than the normal. The introduction shows that what Adrian is about to face it's way more than what he has faced in the past or way more than what exists.
The purpose of the line defines that something bigger and more challenging is ahead than what Adrian has faced earlier.