The round and elevated tower--the ancient mount, with its quadrangular sides facing the ruinous edifices which once boasted the name of Cathedral--seemed of yet more antique and anomalous form, when seen by the pale light which now displayed them.

To one of these churches Fenella took the direct course, and was followed by Julian; although he at once divined, and was superstitious enough to dislike, the path which she was about to adopt.

It was by a secret passage through this church that in former times the guard-room of the garrison, situated at the lower and external defences, communicated with the Keep of the Castle; and through this passage were the keys of the Castle every night carried to the Governor's apartment, so soon as the gates were locked, and the watch set.

The custom was given up in James the First's time, and the passage abandoned, on account of the well-known legend of the _Mauthe Dog_--a fiend, or demon, in the shape of a large, shaggy, black mastiff, by which the church was said to be haunted.
It was devoutly believed, that in former times this spectre became so familiar with mankind, as to appear nightly in the guard-room, issuing from the passage which we have mentioned at night, and retiring to it at daybreak.

The soldiers became partly familiarised to its presence; yet not so much so as to use any licence of language while the apparition was visible; until one fellow, rendered daring by intoxication, swore he would know whether it was dog or devil, and, with his drawn sword, followed the spectre when it retreated by the usual passage.