If a book is worth reading at all, it is worth reading more than once. Suspense is the lowest of excitants, designed to take your breath away when the brain and heart crave to linger in nobler enjoyment. Suspense drags you on; appreciation causes you to linger.
"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.