Python Challenge ahead [NEW] for riddle lovers

[Dan Christensen]

Dan Christensen <jdc at uwo.ca> writes:

> Roel Schroeven <rschroev_nospam_ml at fastmail.fm> writes:
>
>> There's no level 12 yet though.
>
> Now there's a 12 and a 13 (at least!).

Any hints for level 13?  I know how to make a call, but don't know "who"
to call.

Dan