Final answer:
In the story, the characters receive multiple warnings that danger is on the way, including the sound of a crow cawing, the appearance of assassins, and a mighty storm.
Step-by-step explanation:
In the story, the characters receive a warning that danger is on the way through various events and signs. One warning they receive is the sound of a crow cawing three times and flying away. The protagonist interprets this as a bad omen. Another warning is the sudden appearance of assassins in the character's room, which indicates immediate danger. Additionally, a mighty storm and flying rocks surrounding the characters serve as a warning of their impending peril.