"Wish to goodness I had a diamond," he soliloquised as he pressed gently and firmly upon the resisting glass. "Hulloa. There's a stack-pipe. I wonder if the guttering will hold?"

Steadying himself by the stack-pipe, Tressidar hauled himself up until he stood upon the window-sill. He was now able to reach the eave of the roof. Testing the spouting with his weight he came to the conclusion that it was fairly sound.

"Now or never," he muttered, and with an agile spring he drew himself up sufficiently to enable him to clamber on the tiled roof. As he expected, there was a dormer-window less than ten feet to his left.

The tiles creaked as he trod. A stork, nesting between one of the chimneys and the roof, flew noisily away, the sudden apparition of the large bird nearly causing the sub. to slide over the edge of the tiles. For some moments he listened intently. No sound from the immediate vicinity reached his ears. Evidently it was safe to proceed.

The dormer-window was diamond-paned. The leads offered little resistance as he pressed against the glass. In a very short space of time he had removed a piece of glass nearest to the fastening; then, inserting his hand, he threw open the casement and drew aside the heavy curtain.

With his head and shoulders thrust into the room the sub. listened again. The noisy ticking of a clock was the only sound that caught his ear.

"Jolly queer sort of house," thought he; "one might imagine it was in good old England. It's the only one that shades the inside lights, and they are mighty particular about doing it. Even this attic window was bunged up."

The open casement was just large enough to allow him to squeeze through. The floor-boards creaked alarmingly as they took his weight. Again he listened. The sound was enough to awaken the soundest sleeper, unless he or she were stone deaf.

"By Jove! A burglar must be a pretty plucky sort of individual," mused Tressidar as he groped his way to the low doorway and commenced to descend the steep, rickety stairs. "Feeling one's way about in a strange house and in total darkness requires some doing, especially with the risk of being bowled over with a poker thrown in."

Systematically the sub. proceeded with his investigations, examining every room as he came to it, until he found himself on the ground floor. Luck was in their favour, for the house was temporarily without its lawful occupants.