Book that starts with some sort of dark demony sacrifice (maybe?) scene?

[Sarah]

Looking for a book that starts with a demon/creature summoning. It definitely opens with a dark foresty scene where something/someone is summoning a creature or demon. There may have been a sacrifice too! I would've read it in the mid- to late-2000s

[Aerulan]

Human sacrifice, or animal? Was the point of view from a participant, a witness, or the intended sacrifice?

Divine Evil by Nora Roberts opens with a ritual that could fit.