“Why not ask Mr. Grant’s permission? It would be interesting to learn whether he will allow others to try their luck.”

Mr. Siddle strolled on. Winter bent over, keen to discern the gray-backed fish which must be lurking in those clear depths and rippling shallows.

Chapter XIV.
On Both Sides of the River

The sun, transmuted into Greenwich time, exercised an extraordinary influence on the seemingly humdrum life of Steynholme that day. A few minutes after three o’clock—just too late to observe either Winter or Siddle—P. C. Robinson strolled forth from his cottage. He glanced up the almost deserted high-street, in which every rounded cobble and white flagstone radiated heat. A high-class automobile had dashed past twice in forty minutes, but the pace was on the borderland of doubt, so the guardian of the public weal had contented himself with recording its number on the return journey.

But his thoughts were far a-field from joyriders, stray cattle, hawkers without licenses, and other similar small fry which come into the constabulary net. It would be a feather in his cap if he could only strike the trail of the veritable Steynholme murderer. The entrancing notion possessed him morning, noon, and night. Mrs. Robinson declared that it even dominated his dreams. Robinson was sharp. He knew quite well that the brains of the London detectives held some elusive quality which he personally lacked. They seemed to peer into the heart of a thing so wisely and thoroughly. He did not share Superintendent Fowler’s somewhat derogatory estimate of Furneaux, with whom he was much better acquainted than was his superior officer, while Chief Inspector Winter’s repute stood so high that it might not be questioned. Still, to the best of his belief, the case had beaten both these doughty representatives of Scotland Yard; there was yet a chance for the humble police-constable; so Robinson squared his shoulders, seamed his brows, and marched majestically down the Knoleworth road.

He had an eye for The Hollies, of course, though neither he nor anybody else could discern more than the bare edge of the lawn from bridge or road, owing to the dense screen of evergreen trees and shrubs planted by the tenant who remodeled the property.

But the spot where the body of Adelaide Melhuish was drawn ashore was visible, and the sight of it started a dim thesis in the policeman’s mind which took definite shape during less than an hour’s stroll. Thus, at four o’clock exactly, he was pulling the bell at The Hollies. Almost simultaneously, Mr. Siddle knocked modestly on the private door of the post office, to reach which one had to pass down a narrow yard.

“Mr. Grant at home?” inquired Robinson, when Minnie appeared.

Yes, the master was on the lawn with Mr. Hart. The policeman found the two there, seated in chairs with awnings. They had been discussing, of all things in the world, the futurist craze in painting. Hart held by it, but Grant carried bigger guns in real knowledge of the artist’s limitations as well as his privileges.

Hart was the first to notice the newcomer’s presence, and greeted him joyously.