an average outing for the crazily-trousered cockatoo-quiffed peter pan of belgium boy's own. this features the first appearance of professor calculus. calculus has developed a shark shaped submersible, which he insists the captain will need on his quest to locate red rackham's treasure. the captain's frustration at his inability to get rid of professor calculus and his machine is one of the highlights of all the tintin books. otherwise it plods along pleasantly enough, but is not a patch on "the calculus affair", "prisoners of the sun" or "flight 714". and the colours - eeurgh ! dreary browns are splashed over every page.