'A Gilbert is of no use without a Sullivan.' With these words, W.S. Gilbert summed up his reasons for persisting in his collaboration with Arthur Sullivan despite the combative nature of their relationship. In fact, Michael Ainger suggests in Gilbert and Sullivan the success of the pair's work is a direct result of their personality clash, as each partner challenged the other to produce his best work. After exhaustive research into the D'Oyly Carte collection of documents, Ainger offers the most detailed account to date of Gilbert and Sullivan's starkly different backgrounds and long working...