The 3rd book would be "everfound".
The third installment or third book most of the time. P.S. A set of three books or movies is called a trilogy... just in case you wanted to know!
The third book is called: Chains of Reaction
Mockingjay is the third and final book in the Hunger Games Trilogy.
The Time Quake
Yes. Bloodhound is the second book in the Provost's Dog trilogy by Tamora Pierce. The third book in the trilogy is called Mastiff.
The third book in the Hunger Games Trilogy is Mockingjay, which will be released on August 24 of 2010. The author is Suzanne Collins.
The Third book in the Chaos Walking trilogy called Monsters of Men bu Pactrick Ness is already available
September 2008
Brisingr
Yes, the third book in the trilogy, "Tempestuous", is out now.
Yes, that's why it's the Hunger Games Trilogy.
The third book in the Gideon Trilogy will be The time Quake. The release date is set for the 6th October 2009 in America and it can be pre-ordered at amazon.com (see links)