The Terror by Arthur Machen

The little Robertses ran across the road, up the path, and into the lighted room. Then they noticed that Johnny had not followed them. Mrs. Roberts was doing something in the back kitchen, and Mr. Roberts had gone out to the shed to bring in some sticks for the next morning's fire. Mrs. Roberts heard the children run in and went on with her work. The children whispered to one another that Johnnie would "catch it" when their mother came out of the back room and found him missing; but they expected he would run in through the open door any minute. But six or seven, perhaps ten, minutes passed, and there was no Johnnie. Then the father and mother came into the kitchen together, and saw that their little boy was not there.

They thought it was some small piece of mischief--that the two other children had hidden the boy somewhere in the room: in the big cupboard perhaps.