““I am warned of evils that await me,” continued Vivaldi, musing; “of events that are regularly fulfilled; the being who warns me, crosses my path perpetually, yet, with the cunning of a demon, as constantly eludes my grasp, and baffles my pursuit! It is incomprehensible, by what means he glides thus away from my eye, and fades, as if into air, at my approach! He is repeatedly in my presence, yet is never to be found!””