Best Middle Grade Books

Gregor the Overlander by Suzanne Collins  
Eleven year old Gregor falls through a grate in the laundry room of his New York City apartment building. With his two-year-old sister, Boots, he lands in the Underland. Here giant spiders, rats, and cockroaches coexist uneasily with humans. Because a prophecy foretells that an Overlander will play an important role in the uncertain future of Underland (which is on the brink of war), Gregor's arrival is treated as no accident. When he learns his father's disappearance may have something to do with the Underland, Gregor reluctantly embarks on a life-changing adventure.
Gregor and the Prophecy of Bane 
Gregor and the Curse of the Warmbloods 
Gregor and the Marks of Secret 
Gregor and the Code of Claw

Hunger Games Trilogy by Suzanne Collins
Introduces sixteen-year-old Katniss Everdeen, who lives in a post-apocalyptic world where a powerful government called the Capitol has risen up after several devastating disasters. In the book, the Hunger Games are an annual televised event where the ruthless and evil Capitol randomly selects one boy and one girl from each of the twelve districts, who are then pitted against each other in a game of survival and forced to kill until only one remains.
The Trilogy Continues with:
Catching Fire

Bonechiller By graham mcnamee

In this supernatural thriller set in a remote Canadian town in the dead of winter, four friends encounter a  creature that is hunting and killing teens. Out late at night, Danny, the narrator, is stung by the terrible monster and it begins to stalk his nightmares. As he becomes increasingly and mysteriously ill, he realizes that his life is in danger. The foursome, after a failed attempt to involve law enforcement, decide to take on the behemoth with stolen dynamite and guns "borrowed" from their fathers. In addition to the main story line, the novel has Danny coming to terms with his mother's recent death and reconnecting with his father. Each of the friends comes across as an individual. Danny's love interest, Ash, a girl boxer who is half Ojibwa, is a particularly dynamic character. It is from Ash that Danny first hears stories about Windigos, "big, ugly things...with a chunk of ice for a heart." The unrelenting pace, short chapters, and the idea of teenagers taking on a monster with a large amount of weaponry will certainly appeal to fans of horror novels.

Flipped is a romance told in two voices. The first time Juli Baker saw Bryce Loski, she flipped. The first time Bryce saw Juli, he ran. That’s pretty much the pattern for these two neighbors until the eighth grade, when, just as Juli is realizing Bryce isn’t as wonderful as she thought, Bryce is starting to see that Juli is pretty amazing. How these two teens manage to see beyond the surface of things and come together makes for a comic and poignant romance. Soon To be a Motion Picture!