Chris Tompkins and Steven Butler look the same. They are twins. But they did not grow uplike most brothers. They did not know each other. They grew up infamilies. Now they are 30 years old. Chris is a doctor. Last year he went to a big meeting in Chicago. A man at the meeting looked exactlyChris! Steven was at the meeting! He isa doctor. Chris and Steven are both doctors!

    Now Chris and Steven live in the same town. They live very near each other. In fact their houses are next door to each other. They are not always at home. Theygo to meetings in other towns. So they have time totogether. And they get to know each other. And they get on well with each other.