Enchantress Apprentice will be available from Amazon kindle and all kindle apps from the 1st of April 2016. To find the link you need for your local Amazon market click here. It is currently available for pre-order too if you wish to ensure you get it the moment it comes out.
Meanwhile, there’s still time to buy and read Enchantress Awakening. American readers can currently get it at a limited-time discount until the next book comes out.