Shadows Over Venice, Chapter 2 #2

From the time Marco Polo brought the evil masks back with him upon his return to Venice, no one seemed to be able to manage them. But now, with the arrival of a powerful African shaman to the city, one of the great Venetian families seems able to harness the masks' dreadful power, transmuting it into a source of magic never before possible. However, the tragical onset of the great plague and the arrival of three mysterious merchant galleys seem all too suspiciously intertwined with the schemes around the evil masks to be a mere coincidence...