It had clearly been concealed in an "I really have tidied everything" kind of a way.
I asked Ethan who had put it there.
"It wasn't me."
"Well who was it?"
"The lunch box fairy?" He replied, with a quizzical raised eyebrow.
I looked at him disapprovingly.
"The ghost that lives in our house?"
"We don't have a ghost in our house."
"How do you know?"
This was a good point and I admitted as much. We left it there. I'm not sure who was the victor but I'm not sure it was me.