Dating back centuries, this herbal liqueur was first crafted by monks believing it had supernatural powers.
Amaro Montenegro is the variety favored most by a very 'cultured' friend Mary and Gresham make on their travels.
Obviously, we don't want any plot spoilers for visitors who haven't read 'Resurgence,' those of you who have will know of the significance these two visionary pieces of work play in Mary's first taste of international espionage.
The Palazzi Barbaro are a pair of adjoining palaces, in the San Marco district of Venice.
Who wouldn't want to be the guest of a family who loves to party Italian style -that live in a gondola boatyard in the middle of Venice?
Arabella and her family may be fictional, but their boatyard home (also known as a "squero") where Mary spends one of the most amazing nights of her life was inspired by the incredible gondola boatyard at San Trovaso.
Built in the seventeenth century, it is thought to be one of the oldest of its kind in Venice and has been home to many generations of skilled boat-builders. Amazingly, the yard still builds and repairs gondolas to this day, fashioning them from eight different kinds of wood - mahogany, cherry, fir, walnut, oak, elm, larch and lime - as tradition dictates.
Although the boatyard isn't open to the public, anyone can enjoy a view of the gondola craftsmen at work from the opposite bank of the San Trovaso Canal.
The Royal Waterloo Hospital for Children and Women is where Mary wakes to find herself confined after she attempts to commit suicide, and from where she is ultimately rescued.