Take key and proceed with obvious course of action
Take key and proceed to go downstairs and open bread box
Allow me to rephrase that
who knows, there probably are no bread boxes in his house
proceed downstairs
Look at poster, and dig through the couch cushions.
Your dad always loved World War II posters, but you weren't too sure why he did. Oh well.
Poke the poster and do that thing that happened in the prison book thingie