Green Arrow. Vol. 3, Emerald Outlaw

In a tale from happier but no less dangerous times, Green Arrow labors to train a new apprentice who's every bit as deadly as his fiercest villains: a teenage girl, that happens to be his half-sister! But before Emiko and Ollie can embrace as family, they have to save Seattle from a foe that can see the future of anyone he chooses--anyone, that is, except for Emiko Queen...