You head into the alleyway the shadowy figure vanished into, quietly and cautiously. When you get there, however, you don't notice anyone... but after a moment, there is a subtle shift in the shadows. Though you can't make the figure out, you can see the blade he or she is wielding quite clearly.
"Animus." The voice - a female voice - says. Though you can't see it, you can hear her sneer in her voice. "Well, well. Your eyes are sharper than we gave you credit for. I would've expected the halfling to notice me first."
She quickly glances past you, then her gaze settles upon you once more. You can make out her form more clearly now, your eyes having adjusted to the slightly darker shade of the alley. Being in such closer quarters, you can identify her as the woman you met in the library.
"You came alone? Fool." She shakes her head. "Jirlai is a fool... you're all damned fools. But that isn't my business." She regards you coldly. "When the moon is at its zenith, bring your friends to the airdocks. I'll meet you there, and lead you to our place of meeting... Jirlai will be waiting, so do not waste time."
With that, she vanishes into the shadows without a sound.