The Whipping Sky (also known as "Book Five: Sky") is the fifth book of Archai and the second book of the sequel quartet (also known as the "Night Quartet").

Originally published: 07/31/2023 (added book info to page (chronological order and no blurb) and added filler artwork (TDP S4E4 Avizandum flashback art)); edited: 03/06/2024 (added that this book is the fifth book of the series and the second book of the sequel quartet), 03/11/2024 (replaced elemental title with actual title)