FORM: Sending Crystal
SENDER: Sherlock Holmes
RECIPIENT: Everyone
WHAT: Sherlock had a theory, but it's not quite panning out
WHEN: Cloudreach sickness event
WHERE: Sent from the Undercroft
NOTES: Incidentally, Korrin went to help Sherlock out and is semi-passed-out in the background of this post. Whether she comes to and chimes in on anything is up to Isana ;)

FORM: Sending crystal.
SENDER: Gwenaëlle Vauquelin.
RECIPIENT: All u scrubs.
WHAT: An announcement.
WHEN: During Cloudreach's sickness event.
WHERE: Skyhold.
NOTES: Refer to this.