In this story, Geronimo Stilton's sister Thea Stilton goes to find a treasure of Easter Island, but is caught by pirates, who are greedy and ask Professor Von Dustyfur to find the treasure for them. He find the treasure of Easter Island. The pirates imprison the Professor and Thea. Fortunately, Thea had written a letter to Geronimo informing him that she is going to Easter Island and if she does not call him within 2 days, she is likely to be in danger. Geronimo along with Susie and Trap, his cousin brother goes in a plane with Wild Willie to look for Thea. What follows is a journey full of adventures and Thrills.
I loved this book and am looking forward to read more in the series.