twelve o’clock
Adrian looked contemptuous , and muttered something , on which Anna undertook to see Miss Mohun betimes , and judge how the land , or rather the sea , lay , and whether Fergus was to be trusted . It would be a Saturday , a whole holiday , on which he generally went home for Sunday , and Adrian spent the day with him , but the boys ' present scheme was , to take their luncheon with them and spend the whole day in Anscombe Cove . This was on the further side of the bay from the marble works , shut in by big cliffs , which ran out into long chains of rocks on either side , but retreated in the midst , where a little stream from the village of Anscombe , or rather from the moorland beyond , made its way to the sea . The almanacks avouched that on this Saturday there would be an unusually low tide , soon after twelve o'clock , and Fergus had set his heart on investigating the buried forest that there was no doubt had been choked by the combined forces of river and sea . So Anna found that notice had been sent to Clipstone of his intention of devoting himself to the cove and not coming home till the evening , and that his uncle and aunt did not think there was any danger , especially as his constant henchman , Davie Blake , was going with him , and all the fisher-boys of the place were endowed with a certain instinct for their own tides . The only accident Jane Mohun had ever known was with a stranger . Anna had no choice but to subside , and the boys started as soon as the morning 's tide would have gone down sufficiently , carrying baskets for their treasures containing their luncheon , and apparently expecting to find the forest growing upright under the mud , like a wood full of bushes .