Hellblazer #291 (Mature)

"For years John Constantine has been tormented by his evil, Hell-dwelling twin. But now, seeing what a mess his niece Gemma is still in because of this doppelganger, he decides to take action. Sweet(ish) revenge, a diabolical church, an old lover, a human sacrifice and a nifty poison dart gun feature in this epilogue to 'Another Season in Hell.'"