In World War II England, orphaned siblings William, Edmund, and Anna are evacuated from London to live in the countryside, where they bounce from home to home in search of someone willing to adopt them permanently.

"Mia Tang has a lot of secrets. Number 1: She lives in a motel, not a big house. Every day, while her immigrant parents clean the rooms, ten-year-old Mia manages the front desk of the Calivista Motel and tends to its guests. Number 2: Her parents hide immigrants. And if the mean motel owner, Mr. Yao, finds out they've been letting them stay in the empty rooms for free, the Tangs will be doomed. Number 3: She wants to be a writer. But how can she when...

A tale that brings the Ranger's Apprentice series full circle finds an adult Will struggling with the loss of his wife and reluctantly mentoring the daughter of Horace and Evanlyn so she can assume leadership over the floundering Rangers.

Visiting her grandmother in Australia, Livy, ten, is reminded of the promise she made five years before to Bob, a strange, green creature who cannot recall who or what he is.