Who was the second ghost and how did it appear before Scrooge?

In A Christmas Carol, the Ghost of Christmas Present is the second ghost to appear before Scrooge.
To see how he appears before Scrooge, take a look at Stave Three of the story. According to the text, the ghost announces his arrival with the appearance of a "ghostly light" that streams in from the room next door. The ghost also calls out to Scrooge, telling him to enter.
When Scrooge enters the room, it has been transformed. The walls are alive with green foliage, and there is a "mighty blaze" in the fireplace along with a huge feast on the table. Dickens uses imagery to describe the items of food in this great feast. He talks about the "red-hot chestnuts," for example, and the "luscious pears."
You will notice that the ghost is very friendly towards Scrooge, inviting him into the room so that he may know the ghost better. This is because the ghost symbolizes the Christmas spirit and the love, compassion, and generosity of which it comprises.