Does anyone know what a manticore is?

It seems everything in the city outside the Library is connected to it. And now I seem to have a card with a protection spell from 'Manticore Street'.

I assume it is some kind of magical monster, but does anyone have more information? I would like to know what I might face should I venture out of the Library.

Marianne Zahman-
Under Assistant,
The Library
Chaos: 640 Order: 814