Here's Amazon Kindle preorder:

Courtiers: The inside story of the Palace power struggles from the Royal correspondent who revealed the bullying allegations https://www.amazon.com/dp/B09QX4VRFV/ref=cm_sw_r_apan_0STCVNFKMWBQTRJKWRV0 (Oct 6th release)

Adding for Amazon Asia paperback preorder: https://amzn.asia/d/cgFpcvQ (Delivered on Sept 30th)