I. — A CAMERA CRIME
II. — THE TINY SCRATCH
III. — TANGLED MOTIVES
IV. — THE FATAL SCRIPT
V. — AN EMOTIONAL MAZE
VI. — THE FIRST CLUE
VII. — ENID FAYE
VIII. — LAWRENCE MILLARD
IX. — WHITE-LIGHT SHADOWS
X. — CHEMICAL RESEARCH
XI. — FORESTALLED
XII. — EMERY PHELPS
XIII. — MARILYN LORING
XIV. — ANOTHER CLUE
XV. — I BECOME A DETECTIVE
XVI. — ENID ASSISTS
XVII. — AN APPEAL
XVIII. — THE ANTIVENIN
XIX. — AROUND THE CIRCLE
XX. — THE BANQUET SCENE
XXI. — MERLE SHIRLEY OVERACTS
XXII. — THE STEM
XXIII. — BOTULIN TOXIN
XXIV. — THE INVISIBLE MENACE
XXV. — ITCHING SALVE
XXVI. — A CIGARETTE CASE
XXVII. — THE FILM FIRE
XXVIII. — THE PHOSPHORUS BOMB
XXIX. — MICROSCOPIC EVIDENCE
XXX. — THE BALLROOM SCENE
XXXI. — PHYSOSTIGMIN
XXXII. — CAMERA EVIDENCE
THE END