42: Rare bird tries to nest in a character's hair.
43: Character falls into pit.
44: Player receives 'prophetic' vision.
45: Water supply nearest to the party's camp causes vivid hallucinations.
46: Large explosion a good distance away- alchemedial experiment gone wrong.
The 'angels' have recently fallen from grace, and are seeking to unleash an unspeakable evil to earn a place in some demon or devil's retinue until they establish themselves. The butchering of a small town of innocents, preferably after driving the majority of them to the abasement of their morals, will serve perfectly.