It all begins with a fugitive billionaire and the promise of a cash reward. Turtles All the Way Down is about lifelong friendship, the intimacy of an unexpected reunion, Star Wars fan fiction, and tuatara. But at its heart is Aza Holmes, a young woman navigating daily existence within the ever-tightening spiral of her own thoughts.

A lightning strike made Lucy, twelve, a math genius but, after years of homeschooling, her grandmother enrolls her in middle school and she learns that life is more than numbers.

In an instant, Bea felt almost normal with Beck, and as if she could fall in love again, but things change when the psychotherapist who has been helping her deal with past romantic relationships puts her in a group with Beck--a group for teens with obsessive-compulsive disorder.

Emotionally crippled by his obsessive-compulsive disorder, teenager Matthew Corbin rarely leaves his room on a cul-de-sac in London, and he passes the day observing and writing down his neighbors doings from his window--but when a toddler staying next door disappears Matt is the key to solving a mystery and possibly saving a child's life...if he can manage to expose himself, and his secret guilt to the outside world.

"Eleven-year-old homeschooled Katie experiences the ups and downs of growing up and 6th grade--from bad haircuts and friendship breakups to new experiences, new friends, and a new understanding of her OCD"--

Realizing that his OCD (obsessive-compulsive disorder) is out of control, seventeen-year-old Chuck Taylor, who wants to win his best friend back and impress a new girl at school, tries to break some hardcore habits, face his demons--and get messy.

Malik worries that his number thoughts will interfere with his friend's mini-golf birthday party, but with the help of his therapist, family, and friends, Malik is able to manage his feelings and enjoy the day.

Poised to lead his high school soccer team to its third straight state championship, seventeen-year-old star player Jake Martin struggles to keep hidden his nearly debilitating obsessive-compulsive disorder.

When her best friend's cancer returns in the summer of 1987, none of her usual pursuits--surfing, singing, or reading poetry--can keep thirteen-year-old Ava afloat.

Ten: three little letters, one ordinary number. No big deal, right? But for Troy Hayes, a 16-year-old suffering from Tourette Syndrome and Obsessive-Compulsive Disorder, the number ten dictates his life, forcing him to do everything by its exacting rhythm. Finally, fed up with the daily humiliation, loneliness, and physical pain he endures, Troy writes a list of ten things to do by the tenth anniversary of his diagnosis-culminating in suicide on the...