On a cold Autumn day in a damp cellar, Petrichora first experiences what it's like to see and hear thoughts. After a failed plot to steal sweets, Hiraeth is attacked by things that nobody can see. Khleo, a prince already bound by his duties to the throne, feels his grip on his royal facade crumble as he struggles to cope with his parents dying from a strange new disease... What starts as a collection of confusing encounters ends up as a far more complicated...