"I see you keep a lot of marking ink here--" He took up a small bottle, and looked at it against the gas-jet in the middle of the shop.
"Purple--isn't it ?" he remarked, setting it down again.

"As I said, it's strange.

Because the overcoat has got a label sewn on the inside with your address written in marking ink." Mrs Verloc leaned over the counter with a low exclamation.
"That's my brother's, then." "Where's your brother?
Can I see him ?" asked the Chief Inspector briskly.

Mrs Verloc leaned a little more over the counter.
"No.

He isn't here.