Edward Eager was born in and grew up in Toledo, Ohio. A Harvard graduate, Eager was a lifelong fan of L. Frank Baum's Oz series, and started writing children's books when he couldn’t find stories he wanted to read to his own son. In his books, Eager often acknowledges his debt to E. Nesbit, whom he thought of as the best children's author of all time.

Seven-Day Magic is the seventh and final book of the Tales of Magic series. Barnaby, John, Susan, Abbie and Fredericka check out a tattered book from the library for seven days. Oddly, it carefully and correctly records every word they say. Soon they find that it not only records events, but creates new magical adventures.