Refusing to collaborate with Dr. Zinberg on blood-transfusion research, an increasingly paranoid Thackery pushes himself to the limit, and beyond, in an effort to “solve the riddle” and beat his rival. Cornelia and Edwards arrive at a crossroads. Barrow trades one creditor for another. Lucy requests Bertie’s help. With the Knick in the midst of yet another crisis, Robertson calls for a vote.
