Note that Grace Lin is also the author of the award-winning books Where the Mountain Meets the Moon and Starry River of the Sky
Based on an old Chinese tale, the theme here is the bond between those who want to adopt a child, and the child that longs for adoption. Consequently, there is an invisible red thread, which is also unbreakable and it connects those who are destined to be together.
When the king and queen experience hurt in their heart, Fortunate, yet wondering why the pain in their heart exist, a peddler arrives in their kingdom and provides glasses to them so they can see and find the red thread that binds them.
Placing the glasses on their eyes, the red thread becomes visible. Beginning on a long journey wherein day after day and night after night they travel until their clothes and shoes and thread bare. It was a harsh journey, yet as they traveled many, many miles the thread began to grow shorter.
Traveling over mountains, rowing a boat through water, finally the arrive at the end of the red thread to find a baby girl in a bundle inside a cradle. Their hearts were warmed and painless.
Now filled with joy, they brought their baby girl home.