Brink of Disaster — Michael Pryor

Ten years after the events in 'Hour of Need', the final book in the memorable Laws of Magic series (finalist in the inaugural Sara Douglass Book Series Award), Aubrey Fitzwilliam and his friends confront subterranean phenomena, wayward geologists and malign magic – along with the challenges and delights of the adult world. A fantasy/adventure/romance set in an alternative Edwardian world that is now enjoying the headiness and the pleasures of the 1920s. Huzzah!