Uc: Cryptic: "Shells and Bells"

http://math.uchicago.edu/~wald/shellsandbells.pdf

(Brought to a Christmas movie expedition.)

Uc: Pre-Hunt Cryptic: "Some Extraction on the Side"

http://math.uchicago.edu/~wald/someextraction.html

(Unofficial warmup cryptic written for my teammates before the 2017 MIT Mystery Hunt.)