Young Moses and his family sell everything they own and leave their Baltimore, Maryland, home in 1889 to join many other settlers in a race to claim land in the newly-opened territory of Oklahoma.
A passport and rhyming text celebrate the author's adventures discovering differences as well as similarities, from "A" for the variety of animals that populate the planet to "Z" for the time zones that mark the days around the world.
After Cosmo's affection for the Moon causes it to leave its orbit and begin to follow him around, he must reassure the Moon that saying goodbye makes the hello even sweeter.