Chapter 6: Dumb
It's so untidy when they both manage to get captured at the same time.
The gags make verbal communication impossible, but they're well past needing words to converse. John meets Sherlock's eyes and, through the flat steadiness of his expression, indicates that he contacted Lestrade before he was taken prisoner. He also, through a really unnecessary wrinkle of his nose, expresses his displeasure with Sherlock at his persistently dodging the Met's attempts to stay in touch and keep track of him during investigations, because if he'd just bloody well talk to Lestrade once in a while, they wouldn't be in this mess.
A discreet return wrinkle of his own nose points out to John that if Sherlock made a habit of keeping the Yard informed of his movements, then it'd get just a touch inconvenient to suddenly drop of the radar when circumstances call for a judicious bit of housebreaking, wouldn't it. And also, is this really the time to be critiquing Sherlock's management of his casework?
He gets a quirked eyebrow back. Oh, honestly. John gets sarky at the least appropriate times.