But I was in a hurry, because Dorcas was out, and I thought maybe the coco itself was all right, and the salt had only gone on the tray. 
The coco was totally ruined, I thought.
mnli hypothesis: The coco was totally ruined, I thought. premise: But I was in a hurry, because Dorcas was out, and I thought maybe the coco itself was all right, and the salt had only gone on the tray. 