Child in Closet

Late at night, I heard rustling sounds from my closet. Mustering my courage, I opened the closet door, and there was a child inside! He looked at me, giggling, 'Mommy, you found me!' I was terrified. Where did this child come from? I told him to leave my house immediately. He started crying, calling me Mommy. Looking closely, he did resemble my ex-husband somewhat. But I haven't been able to have children since my miscarriage years ago, and I'm divorced. He told me he had a twin brother and even called out my and my ex-husband's names. He asked me tearfully, 'Don't you really remember me?'