The position of the entrance so much within the outline of the Tumulus, is a peculiarity at first sight much more difficult to account for. As it now stands, it is situated at a distance of about 50 feet horizontally within what we have every reason to believe was the original outline of the mound. Not only is there no reason to believe that the passage ever extended further, but the ornamented threshold, and the carved string-course above, and other indications, seem to point out that the tumulus had what may be called an architectural façade at this depth. One mode of accounting for this would be to assume that the original mound was only about 200 feet in diameter at the floor level, and that the interior was then accessible, but that after the death of the king who erected it, an envelope 50 feet thick was added by his successors, forming the broad platform at the top, and effectually closing and hiding the entrance to the sepulchre. If this were so, we may easily fancy that many of his family, or of his followers, were buried in this envelope, and formed the secondary but nearly contemporary interments which are so frequently found in English mounds. The experience of Minning Lowe (woodcut No. 33), Rose Hill (woodcut No. 39), and other English tumuli, goes far to countenance such an hypothesis; and there is much besides to be said in its favour, but it is one of those questions which can only be answered satisfactorily by a careful examination of the mound itself. Meanwhile, however, I am rather inclined to adopt the hypothesis that the mound had a funnel-shaped entrance like Park Cwn tumulus (woodcut No. 46), and that at Plas Newydd (woodcut No. 47), and shown in dotted lines in the woodcut No. 64. The reason for this will be more apparent when we come to examine the Lough Crew tumuli, but the apparent ease with which Amlaff and his brother Danes seem to have robbed these tombs in the ninth century, seems to indicate that the entrances were not then difficult to find. [Illustration: 67. Branch at New Grange. From a rubbing.] [Illustration: 68. Sculptured mark at New Grange, of undecided character.]