Read "The Mysterious Three" by William le Queux online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
The boards covering the windows were about an inch thick, but, with the slovenliness unfortunately too common among British workmen, they had been nailed up "anyhow," and between the two boards immediately facing me was a space an inch or more. Through that, I saw the weak light, as of a candle.
Two rungs higher up I climbed, leant forward, and endeavoured to glue my eye to this crack, in order to peer into the room.