Tom is back at the Scatterhorn Museum, looking forward to spending some time there while his parents are away on one of their adventures. But an unexpected visitor called Pearl Smoot throws everything into disarray when she arrives with an incredible story. She says Tom's old enemy, Don Gervase Askary, has taken her father and brother - and what's more, she claims he has Tom's parents too. Together Tom and Pearl set out on a perilous journey to rescue their families
- a journey that will take them in and out of time, to exotic foreign lands, and finally into the secret hidden world of Scarazand, stronghold of the terrifying Don Gervase himself . . .

It's non-stop action in this breathtaking sequel to the first fantastic Tom Scatterhorn book, The Museum's Secret.