Eggplant Tragedy

I was busy today, so I didn't go out in the yard until dusk today. Something had eaten one of my eggplant seedlings. The Ichibana. It was just gone. Not dug up, but eaten to the ground. Just yesterday I scattered crushed eggshell around the peas, eggplants, peppers, and tomatoes to stop the slugs. I wish I knew what ate it.