Task: Text Simplification
Input (English): oel manga series graystripe 's trilogy there is a three volume original english-language manga series following graystripe , between the time that he was taken by twolegs in dawn until he returned to thunderclan in the sight.
Output (English): graystripe 's trilogy is a three book series that covers the time between when he taken by twolegs in dawn until he returned to thunderclan.