While the first book in the Haunting Danielle series is normally priced just 99¢ (eBook format), the other books in the series are priced at $4.50 each. Except for right now.
The Ghost Who Loved Diamonds (Book 2) is currently on sale for just 99¢ at major eBook venues. Its price will return to $4.50 mid-June 2017.
If you already have the eBook, you might still be interested in the sale. For those who bought the eBook from somewhere other than Amazon and are interested in purchasing the audio version through Audible, it is cheaper to pick up the eBook from Amazon for the sale price, and then buy the audiobook, assuming you are an Audible member. (Audiobook prices subject to change.)
If you have a friend who is just starting the series, you might want to tell them to grab the eBook before it returns to its regular price mid-June.
Happy reading!