This product is a audio CD of "Doctor Who: The Brood of Erys," featuring Colin Baker as the Doctor. Produced by Big Finish Productions, this fiction audiobook is part of the Doctor Who series and is intended for a wide audience including young adults, ages 9-12, and adults. With a run time of 139 minutes, the CD comes in a standard jewel case and is in English language. The science fiction story was authored by Andrew Smith and is unabridged, making it a compelling addition to any Doctor Who fan's collection.