"Three-quarters of a hour, or it may be a hour," Tom added doubtfully.
"I dare say it is an hour," muttered the detective.
He walked straight to one of the chief officials, and asked what trains had left within the last hour.
"Two—both market trains: one eastward, Selby way; the other for Penistone, and the intervening stations."
The detective looked at the time-table, running his thumb-nail along the names of the stations.
"That train will reach Penistone in time to catch the Liverpool train, won't it?" he asked.
"Just about."
"What time did it go?"
"The Penistone train?"
"Yes."