The Ruined Land by Clare Rhoden

Exiled from the Pale, humachine Hector has found a home with the tribes Outside.

Or has he?

While the canini struggle to care for the human twins, Feather travels Broad Plain to reunite them with their father. But his own family is scattered as the Pale sends out its terrifying army and the land itself buckles beneath them.

Can anyone survive the ruination of the land?