Roy, this is my wife, Georgina Spica -- she has a heart of gold and a body to match... and I am Albert Spica and I have a heart of gold and a great d… - Peter Greenaway

Gonzalo threw many books into the bottom of the leaky vessel that took Prospero out on to the sea away from Italy and Europe into exile. Shakespeare does not, of course, elaborate what these volumes were. Prospero's Books speculates. There would need perhaps to be books on navigation and survival, there would need to be books for an elderly scholar to learn how to rear and educate a young daughter, how to colonise an island, farm it, subjugate its inhabitants, identify its plants and husband its wild beasts. There would need to be books to offer solace and advise patience and put past glory and present despondency into perspective. There would need to be books to encourage revenge.

Now, at this very minute, another thing is happening which we cannot hear because most paintings do not have a sound-track. Peter is inventing the word "simony" to explain ecclesiastical purchase-power, for which, since his Church later exercised it so expertly, Simon Magus ought to be revered as a patron not a rogue.

Are these clues? Which ones are important? Which ones are incidental? Which ones are circumstantial?