burglariously

"A detective inspector of police would be bound to lose face if his house were entered burglariously with complete ease."

He decided, painfully, to go back to breakfast, and tell them he had missed his train, and entered in the night burglariously so as not to disturb them.

Here was I, the owner of the house, burglariously present in its walls; and there, in the dining-room, were two gentlemen, unknown to me, seated complacently at supper, and only saved by my promptitude from some surprising or deadly interruption.