Here’s a list of all the books published to date on the Shake-the-Tree catalogue:
Astronomicon 1: The Beginning
Author: Paul Vincent
Publication Date: 17/10/2011
Links: Official Page – Amazon.
Astronomicon 2: Distant Relatives
Author: Paul Vincent
Publication Date: 16/08/2012
Official Page: Official Page – Amazon.
Astronomicon 3: Those Left Behind
Author: Paul Vincent
Publication Date: 04/07/2013
Official Page: Official Page – Amazon
Astronomicon: Icarus
Author: Paul Vincent
Publication Date: 01/03/2013
Official Page: Official Page – Amazon