The Twelfth Card (Lincoln Rhyme 6)

* Sent to Parker Kincaid in Washington, D.C., for document examination.

* Improvised explosive device, as part of booby trap. Fingerprints are those of convicted bomb maker Jon Earle Wilson. Presently searching for him.

POTTERS' FIELD SCENE (1868)

* Tavern in Gallows Heights--located in the Eighties on the Upper West Side, mixed neighborhood in the 1860s.

* Potters' Field was possible hangout for Boss Tweed and other corrupt New York politicians.

* Charles came here July 15, 1868.

* Burned down following explosion, presumably just after Charles's visit. To hide his secret?

* Body in basement, man, presumably killed by Charles Singleton.

* Shot in forehead by .36 Navy Colt loaded with .39-caliber ball (type of weapon Charles Singleton owned).

* Gold coins.

* Man was armed with Derringer.

* No identification.

* Had ring with name "Winskinskie" on it.

* Means "doorman" or "gatekeeper" in Delaware Indian language.

* Currently searching other meanings.

EAST HARLEM SCENE (GENEVA'S GREAT-AUNT'S APARTMENT) * Used cigarette and 9mm round as explosive device to distract officers. Merit brand, not traceable.

* Friction ridge prints: None. Glove-prints only.

* Poisonous gas device:

* Glass jar, foil, candleholder. Untraceable.

* Cyanide and sulfuric acid. Neither containing markers. Untraceable.

* Clear liquid similar to that found on Elizabeth Street.

* Determined to be Murine.

* Small flakes of orange paint. Posing as construction or highway worker?

ELIZABETH STREET SAFE HOUSE SCENE

* Used electrical booby trap.

* Fingerprints: None. Glove prints only.

* Security camera and monitor; no leads.

* Tarot deck, missing the twelfth card; no leads.

* Map with diagram of museum where G. Settle was attacked and buildings across the street.

* Trace: