This story is a sequel to Two in the Space

A drawing of a changeling? Queen Shell giving her title to Wrench? Preventing someone from planting a pole of all things?

Perhaps one small step is all it takes to improve the present.

However, that's not what Air Vent experiences.

When Air Vent trades calendars with Queen Shell, she figures out how to change the past for the better. Or so she thinks. All she wanted to do was to see her present mother one last time. But she has to go through her present first.