In that short story written by the well know novelist, John Steinbeck, the turtle hides in it´s shell when the woman makes herself aside trying not to go through the turtle. This title is an allegory, where every written word has a symbolic meaning, and many US citizens consider it part of the anthology of american literature.
As the author tries to give you this certain relief but throughs in the last part “for a little while” to add suspense that this wont last long. The author adds it to add thought and suspicion on to what to come later as a foreshadowing of the future from the present.