Reddit mentions of A Promise is Promise (Munsch for Kids)

Could it be "A Promise is a Promise"?

Allashua parent's tell her not to go fishing in the sea because the Qallupilluit will reach through the cracks in the ice and pull her under. But she disobeys them and goes fishing in the sea anyway. Just like her parents warned, the Qallupilluit pulls her under, but Allashua promises to bring her brothers and sisters down to the sea if the Qallupilluit lets her go.

So the Qallupilluit releases Allashua, who runs home and tells her parents what happened while they warm her up (she was pulled under the ice after all). Her parents tell her to gather up her brothers and sister and take them down to the sea. While Allashua and her siblings go down to the sea, Allashua's parents invite the Qallupilluit into their home and distract them. In this way, Allashua can keep her promise to bring her siblings down to the sea without the fear of the Qallupilluit pulling them under the ice, so they all escape the grasp of the Qallupilluit.

The only thing I could find is:

A Promise is a Promise by Robert Munsch

http://www.amazon.com/A-Promise-Classic-Munsch/dp/1550370081/ref=sr_1_2?ie=UTF8&qid=1341856658&sr=8-2&keywords=a+promise+is+a+promise

This one maybe? A promise is a promise-Robert Munsch https://www.amazon.ca/Promise-Robert-Munsch/dp/1550370081