Inspector Jane Watson, of New Scotland Yard, paid a call on her good friends Dr. Shirley Holmes, and her roomie, the famous consulting detective Georgia Lestrade. Ms. Holmes answered the door.
"Good day, Jane, and what brings you here today?"
"Good day, Shirley; I'm afraid I need to consult with Georgia. We've been on the trail of a gang of bank robbers, and we've reached a bit of an impasse - we know that the robbery is going to happen to-morrow, but we still have no clue on the target or time."
"Do come in; she will be back momentarily. May I offer you tea? Or perhaps something a touch stronger?"
"I think not, but I would ask you for simple water."
As Holmes handed Watson the requested water, Lestrade walked in. "Jane! So good of you to visit! But I see that you've come in a more-or-less official capacity. So what is it that troubles New Scotland Yard?"
"Well, Georgia, as I told Shirley, we're on the track of a bank robbery about to 'go down'. But we still don't know where or exactly when, just that it's to-morrow. We did intercept an email message between two of the gang; perhaps you can decipher it?"
OSCAR IS WAVING. 15152 33604 27000 20117 14451 21414 46241 60000
Lestrade stared at it for a minute, and reached for her iPad. "Just a moment..." She tapped on the tablet briefly. "Ah yes, this answers the question nicely. You'd do well to deploy your team to..."
Where, and when, is the robbery going to happen?