Fifty years ago the sagas of maritime discovery were the monopoly of the historians; but today they have been taken over by the geographers, and especially by the practical geographers who themselves go down to the sea in ships. Australia is fortunate that its two major interpreters of the voyage of Torres – first Captain Francis Bayldon and now Captain Brett Hilder – are, or were, both blue-water navigators, with special experience of the waters that Torres crossed. Captain Hilder’s The Voyage of Torres is strictly the account of a voyage, and that voyage is analysed with consummate professional skill. The documents of Torres and Prado sufficiently supply the materials, but they are not materials which could be interpreted by an armchair theorist equipped with a school atlas. The guess-work distances sailed, the errors in the primitive observation of latitude, the absence of longitude, the crudeness of early cartography, the loss of some of the records – all of these produce conundrums which only an expert can solve. Earlier analysts, working over the same material, have come to different conclusions; but Captain Hilder’s comprehensive, scientific and authoritative analysis renders obsolete the conjectures of his predecessors, and settles for all time the details of the course sailed.