‘… the clock struck twelve … we were startled from our chairs … the knocking continued, accompanied by deep sepulchral groans … two figures, pale and ghastly and clothed in white entered the room … we heard a voice saying, “I am Wesley, and bring a message from God to you”; and another voice saying, “I am Whitfield, and what thou seest and hearest from us, write in a book, and send to the churches”!’