Theme: Elizabethan SFF and alternate history
Prepared to run it: yes
Suggested books:

I was going to just say AHs but I couldn't find three good ones. So adding in SFF should help. I'm thinking anything speculative set in/around the Elizabethan period.

Kage Baker, "In the Garden of Iden"
Time-travelling cyborgs in Elizabethan England

Harry Turtledove, "Ruled Britannia"
http://en.wikipedia.org/wiki/Ruled_Britannia
(The Spanish Armada wins.)

Melissa Scott and Lisa Barnett, "Armor of Light"
http://www.amazon.com/exec/obidos/ASIN/0915368293/
(Fixit: Sidney and Marlowe don't die. Also, magic works.)

Keith Roberts, "Pavane"
http://en.wikipedia.org/wiki/Pavane_(novel)
(Queen Elizabeth assassinated, protestant church in England destroyed)

Neil Gaiman, "1602"
http://www.amazon.com/exec/obidos/ASIN/0785110739/
(Marvel superheroes in 1602. Graphic novel.)


More here: http://www.osmond-riba.org/lis/ElizSFF.htm