Emilie & the Hollow World
Strange Chemistry 2013
Having run away from her straitlaced relatives orphan stowaway Emilie has found that she is not on the conventional steamship she expected; instead she finds the vessel under attack, a gentleman who is part scales and part fur, and a totally unconventional voyage that takes her under the sea to unknown lands.
For this is a not your average Edwardian adventure tale of derring-do; this is a steampunk novel where Jules Verne meets Edgar Rice Burroughs or H G Wells hobnobs with Rider Haggard, and this is a world both like and yet unlike our own.
Because, as the title tells us, it is a planet where we discover a world within a world: the earth of this universe is hollow.