Bought as soon as my pre order arrived!
I have recently devoured the first three books in this series and absolutely loved them!
Leicester Square would work perfectly well as a standalone read but it is superb as book 4 in the series – so can I please suggest you start at the beginning with Gallows Wood.
The characters are wonderful, Louisa has left me desperate for book 5.
The TENSION never leaves the pages, excellent plotting – TOTALLY RECOMMENDED!