A few months ago, Hatchett listed two new G.M. Berrow books over on their main site, but not much else was known about them. We now have pre-order links and added information over on Amazon.
As with before, Celestia's book appears to be a part of "The Princess Collection", meaning we are probably going to get some Luna and Cadance love soon (and maybe a new Twilight book?).
Have some links!
Princess Celestia and the Summer of Royal Waves
Discord and the Ponyville Players Dramarama
Expect Celestia to drop on the 7th of April, and Discord on the 7th of July!
Thanks to Dan Raccoon and Ken for the heads up!
