In the year 241, twelve-year-old Lina trades jobs on Assignment Day to be a Messenger to run to new places in her decaying but beloved city, perhaps even to glimpse Unknown Regions.

"Iris is the most colorful goddess girl at Mount Olympus Academy. In fact, her hair and delicate wings can change color according to her mood! When Principal Zeus entrusts her with the job of fetching some magic water, Iris is tickled pink--until she realizes she'll have to get the water from the gray, gloomy River Styx in the Underworld! And when Iris figures out how to create magical rainbow slides that will allow her to travel from Mount Olympus...

In the year 241, twelve-year-old Lina trades jobs on Assignment Day to be a Messenger to run to new places in her decaying but beloved city, perhaps even to glimpse Unknown Regions.

In exchange for the granting of her heart's desire, twelve-year-old Dana agrees to make an arduous journey to Lugnaquillia through the land of Faerie in order to warn King Lugh, second in command to the High King, that an evil destroyer has entered the Mountain Kingdom.

Barnaby Grimes tracks a mad chemist after an experiment goes terribly wrong and finds the man has a talent for vanishing into thin air.

Weird and evil events at a London boarding school provide messenger Barnaby Grimes an opportunity to test his budding knowledge of the ancient Chinese art of yinchido, in which one focuses on silences and empty spaces.

"Amberground is locked in darkness. A man-made star casts only a dim light over the land. The pitch-black wilderness is infested with Gaichuu--colossal insects with metal exoskeletons. The Gaichuu make travel between the cities of Amberground extremely dangerous. But thankfully the Letter Bees, a brave corps of messengers, risk their lives in order to keep the hearts of Amberground connected. Gauche Suede is on his last delivery before a big...