Why would you refer to this as fiction?
If you had faith the size of a grain of a mustard seed, you could say to a mountain, be removed, and it would be cast into the sea.
I believe God truly did this to protect a toddler from harm.
May He Who is able to keep you from falling touch your heart, remove the coldness, so that you have a heart of flesh, instead of a heart of stone, and may you, with your own eyes, see the salvation of the Lord.
Could be more...If his only intent was to protect the child from harm, He could have locked or jamned the sliding door, preventing her adventure...
And although God doesn't protect all children from disaster, this is a good lesson for the parents and searchers and readers to trust God...