Battle... and it was a BIG one... he did not win the war. Bonarata doesn't play nice. He doesn't hit above the belt. He's not below cheating, lying, manipulating and murdering to get what he wants. So yea. Mercy and Adam stuck it to him this time... but did they really win???
Time will tell

I absolutely LOVED the way Bonarata was tormenting Mercy in Soul Taken. Oh that was simply BEAUTIFUL. Forcing her listen to him torture, or risk the victim going through solid much worse. Patti created the worst form of manipulation there.
That said, it DOES show that while Adam may have won this