by Junius B. Smith (Author), Roger B. Morrison (Illustrator), J. U. Giesy (Author)

Semi Dual, the wizard detective, and his assistants, Glace and Bryce, investigate the case of Imer Lamb, who has been committed to the private asylum of Dr. Drake. But just what is the secret of the doctor's House of Invisible Bondage? Continuing the casebook of Semi Dual, the occult detector.

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