From the author of the internationally bestselling The Book of Doors another fantastical
stand-alone novel in which a trio of seemingly everyday people are members of a secret society
tasked with finding and protecting hidden magical objects—ordinary items with extraordinary
properties. The world of unknowable objects—magical items that most people have no idea
possess powers—has been quiet for decades but the three current members of a secret society
have remained watchful meeting every six months in the basement of a bookshop in London. They
are pledged to protect their archive of magical items hidden away safe from the outside
world—and the world safe from them. But when Frank Simpson the longest-standing member of the
Society of Unknowable Objects hears of a new artifact coming to light in Hong Kong he sends
Magda Sparks—author by day and newest member—to investigate. Within hours of arriving in Hong
Kong Magda is facing death and danger confronted by a professional killer who seems to know
all about unknowable objects specifically one that was stolen from him a decade before. Magda
is forced to flee using an artifact that not even the rest of the Society knows about.
Returning to London Magda learns hers is not the only secret being kept from the other two
members. And that the most pernicious secret is about the nature of the Society’s mission. Her
discoveries will lead her on a perilous journey across the Atlantic to the deep south of the
United States now in pursuit of not an unknowable object but an unknowable person: the
professional killer she first faced in Hong Kong. In doing so Magda begins to understand that
there are even more in the world who are chasing these magical items and that her own family’s
legacy is tied up in keeping all these secrets under wraps. Magic has always been too powerful
to reveal to the world. But Magda will learn there might be something even more powerful: The
truth.
