How many books are there in a trilogy?

More Questions:

In the automotive world, what does the abbreviation DOHC mean?

The Bical grape originates from which European country?

What was the very first Andrew Lloyd Webber musical to be adapted to film?

Which desert covers part of China and Mongolia?

The "Carnac Stones" are located what country?

In 1620, the Pilgrims established the Plymouth colony in which present-day US state?

Which element of the periodic table is named after the moon?

What is a male cat if a female is a queen?

Something that is described as "vespine" resembles what type of insect?

What movie's first sequel featured the subtitle "Road Warrior"?

Who is Larry Hagman's mother?

In 1977, Steven Demetre Georgiou, changed his name to what?

Who was better known as Butch Cassidy?

What nation was led by Rameses the Great?

Within the English language, what author has the most published books?