The first story tells how Muggins the Mouse went to Cape Kennedy, stowed away in an astronaut"s pocket, and became the first "mousetronaut".

In the second story, Muggins is captured by a leprechaun and is tugged along through the woods. He drops clothes to mark the path, and when the leprechaun has tied him up and left, he is rescued by his mother. Adorable vintage children's book..