Structural Readers are graded both by structure and vocabulary in six stages, ranging from post-beginners to intermediate level. Real beginners can start with "Easystarts" and progress to LSR Stage 1. Most books in the series contain exercise material.
The main story is about Greg Mason, a young man who works in a shop. One day in winter he sees his doppelgaenger for the first time. Greg is afraid. He wonders where the doppelgaenger is from and what he wants to do with him. Mike, Greg's best friend, at first doesn't believe him, but when he sees the doppelgaenger he realises that this isn't Greg. Later, the doppelgaenger tells Greg that there are three other doppelgaengers of three other persons and that they aren't form this earth. On their planet they couldn't live any more so the came to the earth. Now he has to make a transfer with Greg. And after that transfer Greg wouldn't live on. Then only the doppelgaenger would live. The other three doppelgaengers have already executed the transfers with their persons. But then they all die because they don't known enough. One dies in a fire, one breaks through ice on a lake and one dies in a motorbike accident because he drives too fast. Only Greg is still himself. His doppelgaenger can't make the transfer because Greg is deaf. So he looks for another person to make the transfer and he finds one in Mike.
“The snow came to the south one day in January, and on that day Greg Mason saw his Double.” So begins “Double Fear”, the first of the three stories in this chilling new collection.
Greg’s Double is exactly like him. He wears the same clothes, he has the same face, hair and eyes. Only his smile is different; it is not a nice smile. Who is he? Where has he come from? And what does he want with Greg?