"The secrets of stage conjuring" by Jean-Eugène Robert-Houdin is a practical treatise on stage magic written in the late 19th century. It explains how celebrated illusions are conceived, built, and performed, uniting theatrical craft with mechanics, electricity, and optics to demystify feats once attributed to “white magic” or spirits. The opening of the treatise first explains that the work was compiled posthumously from the author’s materials, then recounts how he built his intimate Palais Royal theatre with help from Count de l’Escalopier—illustrated by an ingenious desk “trap” that exposed a household thief. It next details the theatre’s compact layout and the author’s modern stage reforms: elegant bare tables instead of draped “confederate boxes,” concealed servante and gibecière, piston controls for automata, targeted lighting, and the crucial roles of visible and invisible assistants. The narrative then introduces early feats with clear principles: a handkerchief that flies up the sleeve on a hidden pull; the electro‑magnetic “light and heavy” chest with a deceptive overhead pulley; rows of candles lit at once by induced sparks; and the “ghost illusion” (Pepper’s Ghost), complete with angles, lighting, and a striking dramatic application, plus a daylight variant for dissolving images. It closes this portion by describing the Indian Basket trick in stage and street forms and begins a chapter on spiritualistic manifestations with a staged levitation and a self‑moving table and bouquet. (This is an automatically generated summary.)