Thirteen-year-old Colophon Letterford and her cousin Julian continue their quest to uncover their family's treasure as new clues lead them to Oxford, England, seeking to unravel a connection to Christopher Marlowe.

In 1817 in England, two young cousins, Cecilia living in the country and Kate in London, write letters to keep each other informed of their exploits, which take a sinister turn when they find themselves confronted by evil wizards.

"The Most Southern Place on Earth: that's what they call the Mississippi Delta. It's not a place Lydia Chin, an American-born Chinese private detective from Chinatown, NYC, ever thought she'd have reason to go. But when her mother tells her a cousin Lydia didn't know she had is in jail in Clarksdale, Mississippi -- and that Lydia has to rush down south and get him out -- Lydia finds herself rolling down Highway 61 with Bill Smith, her partner, behind...

"First cousins Ellison (Eli) Winfield and Adeline (Delia) Green are meant to grow up happily and innocently across the street from one another amid the supposed wholesome values of small-town Green Branch, South Carolina, in the 1960s and 70s. But Eli's tragic accident changes the trajectory of their lives and of those connected to them. Shunned and even tortured by his peers for his disfigurement and frailty, Eli struggles for acceptance in childhood...

Two cousins, one in Mexico and one in New York City, write to each other and learn that even though their daily lives differ, at heart the boys are very similar.