Rising elegantly above the River Thames halfway between the Tower of London and Big Ben is the Temple. Inner and Middle Temples, and beyond them Lincoln’s and Gray’s Inns make up the four Inns of Court. Here are time-forgotten havens of shady courtyards, scented gardens, and spooky gas-lit passageways. For hundreds of years, lawyers in their chambers and courtrooms have beavered away, crafting and refining the Common Law.