第十五章：“你响了，夫人？”(12)

But once they have learnt the skill of ‘fetching’, they are, quite simply, the best scent and tracker dragons in the entire world. 
The piggy snout of the Hogfly, snuffling away, could smell smells that you and I cannot even imagine smelling. He could smell the shoal of Winterfleshers, currently passing underneath the boat they were standing on. He could smell the birds sleeping in the pine trees, way, way in the distance on the faraway shoreline.