Yes there is
yes there is
There is. It's called Pegasus and The New Olympians. Also, there is going to be a fourth one called Pegasus and The Origins of Olympus. It comes out in October 2012.
Yes, its coming out this year apparently, I heard it is called 'Olympus at War'
No, there are currently only four books in the series. However, Katie O'Hearn has announced that there will be a fifth and sixth book to the series. The fifth book is expected in early 2015.
pegasus by marianna mayer
There are three likely book series with Pegasus in the title/series; Kate O'Hearn's books: Pegasus and the Flame (Pegasus, #1) Pegasus and the Fight for Olympus (Pegasus, #2) Pegasus and the New Olympians (Pegasus, #3) Pegasus and the Origins of Olympus (Pegasus, #4) No fifth title mentioned. Anne McCaffrey's Talents series: To Ride Pegasus (1) Pegasus in Flight (2) Pegasus in Space (3) It is followed by the The Tower and the Hive series: The Rowan (1) Damia (2) Damia's Children (3) Lyon's Pride (4) The Tower and the Hive (5) Get Off the Unicorn also has short stories involving this series. Robin McKinley's Pegasus books, Pegasus (1) Ebon (2) - to be published 2015 The Golden Country (3)-to be published 2015
There is already a fourth book in the series. It is called Pegasus and the Origins of Olympus. It was released in October 2012.
The stars
Pegasus
Blackjack is the pegasus that escapes from Luke's cruiseship in the second book
Rosa and the secret princess is the seventh book.