 He starts talking about vampires, and that afternoon Renfield begs Seward to send him away, claiming his nightly cries may disturb Mina's dreams.When Dracula calls Renfield with wolf howling, Renfield is disturbed by Van Helsing showing him wolfsbane, which Van Helsing says is used for protection from vampires.Dracula visits Mina, asleep in her bedroom, and bites her.