Only the table lamp was burning in the study room.
I lit another lamp in the room.
I saw that the back was stabbed.
No knife.
Blood is oozing from the wound.
Then I called you at the police station.
"Well done," said the police officer.
"But I am sorry to have to put you on the suspicion list.
You need to interrogate a little more.'
Why?
Would I have informed you if I had killed? The doctor asked excitedly.
"But we have never once said that you committed murder or were involved in murder," said the police officer calmly.
So why doubt?
Why should be questioned?'
"Because you lied."
"The secret is how the police officer realized the doctor lied," Maysha concluded.
'Heh,' said Uncle Baltu in a sly tone.
"I told the story of Bilet while sitting in Bangladesh.
And I see no mystery here.
The police have suspected, yes.
Amani said that the doctor lied.
'I think I've got the secret,' said Tahjib.
'You can do that,' said Doltu Mama.
'Since your elder sister has told the secret, you are telling it too.
You read in class seven.
So you think of the elder sister studying in the university, omniscient.
'Not at all,' protested Tahjib.
"Then tell me, what is the secret?"

