Heng loves gazing at the sky. 'How many stars are there?' he asks. Will he ever find the answer? Children aged 2 to 5 will enjoy the story of Zhang Heng (張衡), who was the first in history to discover that the earth was round. This book is part of the 'Heroes of China' series in which Jillian Lin retells tales of famous Chinese figures so they are easy and fun to read. Beautiful illustrations make these books wonderful early readers or read-aloud stories in English and Chinese.