Barnes & NobleEmpire of Ivory (Temeraire Series #4) by Naomi Novik

From the New York Times bestselling author of A Deadly Education comes the fourth volume of the Temeraire series, as the Napoleonic Wars bring Will Laurence and Temeraire to Africa in search of aid.“Temeraire is a dragon for the ages.”Terry BrooksTragedy has struck His Majesty's Aerial Corps, whose magnificent fleet of fighting dragons and their human captains valiantly defends England's shores against the encroaching armies of Napoleon Bonaparte. An epidemic of unknown origin and no known cure is decimating the noble dragons' ranks-forcing the hopelessly stricken into quarantine. Now only Temeraire and a pack of newly recruited dragons remain uninfected - and stand as the only means of an airborne defense against France's ever bolder sorties. Bonaparte's dragons are already harrowing Britain's ships at sea. Only one recourse remains: Temeraire and his captain, Will Laurence, must take wing to Africa, whose shores may hold the cure for the mysterious and deadly contagion.