Small Worlds is a series of illustrated adventures for readers aged ten to twelve about the small living things all around us. Wren and her new stepbrother Ezra, at a field station on the edge of a wild common, chase real questions about insects, plants and pond life with a hand lens, a field guide and no magic. Each book delivers one natural-history topic through a race to answer a question before something is lost, and teaches how to look closer.
The moth trap on Coldharbour Common should be full of moths, and it is nearly empty. Eleven-year-old Wren is sure that more flowers will bring them back, and her new stepbrother Ezra will believe nothing without numbers. Then Wren pulls up the wrong plant, and finds out what was living on it.