Ugh, characterization is such a pain.
Going Home
Seb radioed in. "Boss, he walked out. You?"
"I'm fine, Sebastiana. He refused. I let him leave. If I bother him enough, he'll surrender."
Seb picked at her nails. "What now?"
"I have plenty to do, darling. I can't spend it worrying about one university student—even if he is Sherlock Holmes. Give him time. I'll cause him some trouble and he'll know whose side he wants to be on."
Down below, Sherlock made his way back to the car that was parked a mile away from the warehouse.
"All done?" Mycroft drawled, still managing to sound prim.
Sherlock nodded, pulling out his phone. "One final task."
The prompt was from Sailasiri Culnamo, and it was: surrender