Shadowy increases...
From Fallen London Wiki
I went from 131 +37CP in the first "Shadowy is increasing..." note to 133 +17CP in the second. This works out to an increase of 120CP, so I think the rewards got adjusted.
Unfortunately, I didn't note what my Persuasive CP count was prior to the challenge, so I'm not certain how much Persuasive I gained.
Is there any way to tell the exact number of CP for an attribute outside of hovering over the icons in a challenge rewards list?
