This is the fourth book in the Shakespeare series. Another book that I just couldn’t put down. Shakespeare is initially sent up north, to Lancashire, to the house of the Earl of Derby, to safely bring Dr Dee back down south. Dee is the creator of the much coveted perspective glass, essentially an early version of what we now know to be a telescope. Spain is desperate to get their hands on the device, but if they can’t, would they then get the next best thing? The man with the knowledge to create it again. As with all these historical crime/detective novels, nothing is ever simple. First, the Queen’s cousin, Ferdinando, Lord Strange, and Earl of Derby, dies under suspicious circumstances. Shakespeare is convinced that there’s foul play. Secondly, Shakespeare hears of a problem regarding his son, at Oxford university. It is said that Andrew has committed a treasonous crime, and has gone on the run from the law. Shakespeare knows that Andrew would never do the thing in which he has been accused. But he knows that he must search Oxford and the surrounding area, and find his son. Thirdly, Robert Cecil sends a message to Shakespeare, that the plans have changed. Shakespeare is to become a double agent, gaining the trust of the Spanish army over in Brittany, in order to aid the English navy and army is the conquest of a fortress. This all seems incredibly confusing, and you must wonder how on earth these situations are linked. Trust that they indeed are, and the tale to be told is one of action, rich details, excitement, despair, and just brilliance.