The Deep Box

It was a normal day in my house, i was enjoying the last hours of sunday, watching TV, sleeping. But when i was going to sleep i heard from my door.
-TOC TOC TOC- i heard from the door
-Who is it?-i asked
nobody respond me,
-Hello?!-i almost shouted.
But nothing happens.
I look through the window and it was a giant box, the box it was almost like my door.
Next morning i opened the door and entered the box, i drink my coffee in front of the box i walk so i can read what it said. My name was in the box so i opened it and it have a timer and then....