You decide to push this issue from your mind until later. The mystery of this horse suit can wait until you get back from your hike. The day is just too beautiful to waste trying to figure out what to do with this kinky equine costume. You lug the suit, which weighs more than you expected, up to your room and place it, carefully folded so as to hide the nether regions, in your closet. Closing the door and bounding down the steps, you resolve to enjoy the day.
You left your house at early morning, and now the sun has long since set and night has fully descended again. Your day was a non-stop parade of activity. You returned from the hike before noon for lunch, but then your friends came by for an afternoon of video games. A dinner out and a movie completed the day's events. Exhausted, you return to your darkened room with every intention of going right to sleep. But before you get into bed, you remember the mysterious package from earlier that morning. You open the closet door and find the suit missing!
"What if someone broke in and took it? What if they try to use it to blackmail me?" all these thoughts and more race through your mind. You reach for a switch, hoping the light will reveal what happened. You turn to find the horse suit, neatly unfolded and arrayed, laying on your bed. "Did one of the guys do that?" you wonder. "No, it couldn't have been them. No one went upstairs the entire time. And if one of them did find it, everyone would have known about it from the jokes."
Cautiously, you walk over to the costume for a better look. Suddenly, the suit rises! The hollow shell floats over your bed like some kind of cheap ghost effect, but there aren't any strings holding it up. Before your terrified eyes, the limp head gains definition, and turns toward you with its empty eyes. You back up and notice that the head isn't the only part to become solid. The horse cock, formerly flaccid and flat, now stands erect and ready! The rest of the suit still hangs like a shroud though.
You keep backing up from the levitating suit until you get stuck in a corner. The horse suit keeps getting closer...