True tales (or so it was claimed) of subterranean journeys* King Herla in the cavern of the dwarfs* Enkidu and his descent into Sheol* Orpheus and Aeneas in Had

A gripping history of the polar continent, from the great discoveries of the nineteenth century to modern scientific breakthroughs Antarctica, the ice kingdom h

Possessing extraordinary powers, including the ability to bring artwork to life, twelve-year-old twins Matt and Emily are sought by villains trying to access th

A chance discovery of a large crevasse at the North Pole in the 1800s took our intrepid explorers into another world beneath the surface of the earth. It became

Matt and Emily Calder’s travels through time come to a thrilling conclusion in the third book of the Hollow Earth trilogy as the siblings struggle to close Ho