Ripper, by Stefan Petrucha

Orphan Carver Young has some general fantasies about becoming a detective, and devours novels and stories about  great sleuths, as well as serialized and sensationalized mysteries.  When ex-Pinkerton Detective Albert Hawking, cranky, contentious, eccentric, brilliant, and crippled, offers to take Carver on as an apprentice to share all he knows, Carver is ecstatic, even though it means living (for a reason I never really understood) in a private floor at the top of a mental institution, and getting more questions, half-hints, and criticism from Hawking than direct answers.  Carver's first and main "case" is to figure out the identity and possibly location of his father based on a scrap of a letter sent to the orphanage many years before.  As part of this Hawking introduces him to the "New Pinkertons", an underground (literally) and top-secret detective agency endowed by Alan Pinkerton upon his death. Hawking was head of the agency until his injuries forced him to give the reins to another former Pinkerton agent, Tudd, who is devoted to "gadgets" and buys many, many new mechanical, electrical inventions to help the secret agents with their investigations, and who is obsessed with catching a murderer, convinced it is the return of Jack the Ripper.

Prepare to Die by Paul Tobin

Despite being at their mercy, Steve Clarke, aka superhero Reaver, is inexplicably given a boon by arch-nemesis Octagon and his cadre of supervillains, Eleventh Hour - instead of killing him outright, they grant him 2 weeks to take care of his affairs before he reports back to them to fight to the death.  Steve uses the two weeks to come to grips with how he became a superhero in the first place, the loss of superfriends, his own moral ambiguity at times, and to reunite with his high school love, the girl who got away (or was pushed away due to Steve's unanticipated mutation caused by a chemical spill which transformed some of the cars occupants and killed others).

The Book of Blood and Shadow by Robin Wasserman

Nora has a pretty good life - yes, her brother is still dead and her parents are still withdrawn into their own self-absorbed worlds, but she has made a new family of sorts, with bright, charming, boy-wonder Chris and his lovely, capricious girlfriend Adriane as her best friends, and moody, quiet, scholarly Max as her boyfriend.  She also has an engrossing translation project for a local professor to strengthen her link with Chris and Max - while they work on translating the "important" parts of an ancient mystical document the professor is obsessed with, Nora translates late 16th century letters from a young woman, stepdaughter to a great magician - busy work to the professor, but more and more fascinating to Nora.  When her translation of the letters leads to a new discovery, she never expects it to end with the professor insane, Chris dead, Adriane catatonic and Max gone and branded a murder...but that's what happens.

Insurgent by Veronica Roth

Sequel to Divergent

Tris, now on the run as war erupts, attempts to figure out what information is so vital, or so dangerous, that some factions would destroy others just to contain it.  

Divergent by Veronica Roth

In dystopian Chicago, society has been divided into 5 factions, each dedicated to cultivating a certain value:

• Amity (the peaceful)
• Candor (the honest)
• Abnegation (the selfless)
• Erudite (the intelligent)
• Dauntless (the brave) 

Scarlet by A.C. Gaughen

The early days of the Robin Hood story, told from the perspective of "Will" Scarlet.  Known to Robin, John, and a few others as just Scarlet, she is a young woman posing as a young man after running away from an arranged marriage.

Star Crossed, by Elizabeth Bunce

Escaping from Green Men soldiers after a botched theft results in her partner's death, Digger convinces a boat of young nobles to help spirit her away, thinking they are helping "Celyn" escape from convent school.  Willing to leave the city of Gerse behind for awhile, Celyn becomes a maid to one of the nobles, a younger girl named Merista who is about to be presented to the marriage mart, and goes with Meri to reunite with her parents, exiled for the last several years for their part in a plot to overthrow the king and the corrupt church. 

Crossed, by Allie Condie

Sequel to Matched.

Five Flavors of Dumb, by Antony John

Piper is a senior in high school - quiet, keeps to herself, captain of the chess team, gets good grades, the usual stuff expected from a "good girl" character in teen novels, but Piper's behavior is due in large part to her feeling isolated from her fellow students because she is deaf.  With hearing aids she can hear some things, but her hearing is not perfect, especially in crowds or when she can't also lip-read.  Her best friend, also deaf, has moved away, Piper's younger brother, a freshman, seems embarrassed by her desire for him to sign with her, and her parents have raided the college fund her deaf grandparents set up especially for Piper to attend a college for hearing impaired students - to pay for cochlear implants so her baby sister can hear and not be disabled like Piper.  She's frustrated with being different and that her parents, her dad in particular, seem to see her as broken.  In a moment of very frustrated, very un-Piper-like behavior, she challenges the lead singer of her school's Teen Battle of the Bands winner - she'll become their manager and get the band, named Dumb, a paying gig within 30 days. 

Close to Famous, by Joan Bauer

13-year old Foster McFee and her mother leave Memphis in a hurry when her mom's Elvis-impersonator boyfriend gives mom a black eye.  Leaving with only the items they can fit in their car, which is pretty much everything they own, they end up randomly stopping in Culpepper, West Virginia.  With no other destination in mind, they decide to stay in Culpepper, at least for the rest of the summer, and meet and befriend some of the town's inhabitants.  Because it is a small town, of course many of the inhabitants are eccentric and quirky, but at least their quirks are a different than the usual fare:  Miss Charleena is a former movie star who is hiding out after losing her confidence when her husband left her for a younger woman, Angry Wayne, owner of Angry Wayne's Bar and Grill is...if not angry, at least crotchety and a bit cranky, and Macon is a budding documentarist, just a tweenage one without a camera. 

Ninth Ward, by Jewell Parker Rhodes

Dealing with the days leading up to and immediately after Hurricane Katrina, through the eyes of a 12 year old girl living in NOLA's Ninth Ward with her 82-year old caretaker, Mama Ya-Ya.  Allows the reader to see the neighborhood and the life through the eyes of a bright, creative child who sees ghosts, believes in signs, loves math and words and learning and longs to build bridges when she grows up.