May Contain Mild Plot Spoilers
This book is nicely written, but the problem is the plot, and the actions of the hero/museum curator.
Like characters in a Robert Goddard novel, the curator seems to spend all his time inanely shuttling about from place to place, accompanying and assisting the Police to an extent they simply, one hopes, would never involve a lay person, particularly one as clueless,inept and ineffectual as Alex. At least two people die due to his meddling.
Unlike most of the Robert Goddard characters, Alex does have a full time job, but one from which he can absent himself at no notice and and with zero accountability.
Why are these elaborate murders being carried out? We get a vague idea.
Who did the murders? We never find out. But by then we just don't care either.
All that lingers is dissatisfaction at a whole story which might have been so much better.