Hester is fishing in Scotland with Guthrie Loudon and a child named Ian.
"Guthrie takes out his rod and says solemnly he is doubtful about the fish today. They don’t as a rule take well with mist on the mountains. I reply facetiously that the fish can’t possibly know about the mist unless somebody has told them.
‘But the kelpies tell them, of course,’ replies Guthrie gravely. ‘I thought you knew that much, Hester. How ignorant you are, to be sure!’
Ian gazes at Guthrie with large brown eyes, and asks if Mr. Loudon has ever seen a kelpie talking to the fishes. This puts the good man in rather a hole, and he spends some time fabricating a long and somewhat complicated answer to the question."
From Mrs Tim of the Regiment by DE Stevenson