Simplify the following text for a Grade 10 native English-speaking person.
Original: Bear , Gregory Benford , and David Brin wrote a trilogy of prequel novels to Isaac Asimov 's famous Foundation trilogy with Bear credited for the middle book in the trilogy .
Simplified: Bear , Gregory Benford , and David Brin wrote a series of three novels that take place before Isaac Asimov 's famous Foundation series .