Lestrade called Sherlock the next morning. Sherlock was excited, a bombing at a girl's private school! He danced around the room and shouted, "A bombing, oh, it's Christmas!"
John rolled his eyes and agreed to follow Sherlock to the crime scene but insisted that they leave the girls a note. Reluctantly, Sherlock scribbled a quick note in capital letters: GOT A CASE FROM SCOTLAND YARD. MAY BE GONE ALL DAY. STAY AT BAKER STREET.
Sherlock practically flew out of 221B and John struggled to keep pace with the detective. Sherlock hailed a cab and the men were on their way to New Scotland Yard.
Sherlock and John took the lift to the floor with the offices, where Lestrade met them.
"We're got a witness, but she's in a state of shock and she won't talk. Whatever you do, don't scare her."