Two small silver coins were found amongst the rubbish within the castellum, one of Vespasian, the other of Marcus Aurelius. Although their testimony is of a negative character, it will be observed, that it is not inconsistent with the idea, that the castle was erected in the time of Hadrian, and with the opinion already hazarded, that it was dismantled at an early period. There were also found large pieces of earthen-ware, chiefly of the coarser kinds, and fragments of millstones formed of lava, which shew that culinary operations were carried on within these cold, bare walls, and a solitary oyster-shell among the rubbish bore testimony to the attachment of the Romans to this article of luxury. The mile-castle is very nearly midway between the seas. Besides the articles already enumerated, there were picked up within the castellum some large glass beads of somewhat singular appearance, (Plate VII., figs. 7, 8) and a fibula of brass. The whole of these relics are safely deposited in the collection of antiquities at Chesters. The interesting building is, happily, upon an estate belonging to John Clayton, esq.; the hand of the spoiler will therefore not be allowed to touch it. About one hundred and fifty yards south of the castellum, is a spring of excellent water. Near it, about midway between the Vallum and the Wall, an altar to Apollo was lately discovered, which will afterwards be described. [Sidenote: TEMPORARY CAMP.] A road leads from the vicinity of the mile-castle to the town of Haltwhistle, in the sheltered valley of the Tyne, whither, should the shades of evening be approaching, the way-worn antiquary may be glad to bend his steps. At the point where the path joins the modern military road, a Roman camp will be observed. On the sides which are most exposed, double and triple lines of earth-works have been raised. The rock on the western face of the ground where the camp stands, has been wrought by the Romans for stones, and the camp has given them temporary protection. It was here that the inscription on the face of the rock, LEG. VI. V., was discovered in 1847, as already mentioned, page 81. The quarry, not being required for the use of the district, was shortly afterwards closed. [Sidenote: HALTWHISTLE.] The Castle-hill at Haltwhistle is, apparently, a diluvial deposit; ramparts, still quite distinct, run round the margin of its summit. Several peel-houses in the town and its vicinity, will interest the antiquary.[113] To those who cherish the religious views of the early Anglican reformers, it will be interesting to remember, that this is the native district of Nicholas Ridley, bishop and martyr. Willimoteswick-castle, his reputed birth-place, is on the south bank of the Tyne, about three miles below Haltwhistle.[114] [Sidenote: HALTWHISTLE-BURN-HEAD.]