The first two books are Order Battletome: Idoneth Deepkin and Order Battletome: Fyreslayers, two factions featured in the Fury of the Deep Starter Set (see "'Fury of the Deep' Starter Set"). Alongside these two books, they will also release the Auric Flamekeeper and the Akhelian Thrallmaster in their own kits. These products are slated to arrive in Winter 2022.
In spring 2022, GW will release two more books. Order Battletome: Nighthaunt and Order Battletome: Daughters of Khaine will showcase the two factions in the Warhammer Age of Sigmar: Arena of Shades Battlebox. Then, in the summer of 2022, GW teased a thus far unnamed Chaos Battletome and an Order Battletome.Click on Gallery below for full-size images!