In the country of Carthya, a devious nobleman engages four orphans in a brutal competition to be selected to impersonate the king's long-missing son in an effort to avoid a civil war.

A trilogy conclusion finds Byx and her friends discovering that the same extinction facing the dairnes is threatening all living species, prompting the team to recruit creatures throughout the world into their revolution.

After Minty discovers a secret tree with a hollow trunk that holds the secrets of everyone in the neighborhood, Raymond, a new boy drawn to the tree and Minty start watching their neighbors.

Eleven-year-old Harriet keeps notes on her classmates and neighbors in a secret notebook, but when some of the students read the notebook, they seek revenge.

Mibs's cousin Ledge is disappointed to discover that his "savvy"--the magical power unique to each member of their family--is to make things fall apart, which endangers his uncle Autry's ranch and reveals the family secret to future reporter Sarah.

Callum Hunt's life has been difficult ever since he was admitted to the Magisterium, since his father suspects him of being evil, and his closest companion is a Chaos-ridden wolf--but when he discovers that his father may be trying to destroy both him and Havoc, he escapes back to the magical world and he and his friends Aaron and Tamara, become involved in the search for the stolen Alkahest, a copper gauntlet with dangerous powers.

Twelve-year-old Abilene Tucker is the daughter of a drifter who, in the summer of 1936, sends her to stay with an old friend in Manifest, Kansas, where he grew up, and where she hopes to find out some things about his past.

When twelve-year-old Peter and his family arrive in Greenland for his father's research, he stumbles upon a secret his mother has been hiding from him all his life, and begins an adventure he never imagines possible.

The Tuck family is confronted with an agonizing situation when they discover that a ten-year-old girl and a malicious stranger now share their secret about a spring whose water prevents one from ever growing any older.

Finley Hart is sent to her grandparents' house for the summer, but her anxiety and overwhelmingly sad days continue until she escapes into her writings which soon turn mysteriously real and she realizes she must save this magical world in order to save herself.