You must have started early, and yet you had a good drive in a dog-cart, along heavy roads, before you reached the station." The lady gave a violent start and stared in bewilderment at my companion.
"There is no mystery, my dear madam," said he, smiling.

"The left arm of your jacket is spattered with mud in no less than seven places.

The marks are perfectly fresh.

There is no vehicle save a dog-cart which throws up mud in that way, and then only when you sit on the left-hand side of the driver." "Whatever your reasons may be, you are perfectly correct," said she.

"I started from home before six, reached Leatherhead at twenty past, and came in by the first train to Waterloo.