Everything is in the case; and I have put 'special rapid' plates into the dark-slides in case the light should be bad." "Then we will go forth and beard the Scotland Yard lions in their den," said Thorndyke, putting on his hat and gloves.
"But surely," said I, "you are not going to drag that great microscope to Scotland Yard, when you only want eight diameters.

Haven't you a dissecting microscope or some other portable instrument ?" "We have a most delightful instrument of the dissecting type, of Polton's own make--he shall show it to you.

But I may have need of a more powerful instrument--and here let me give you a word of warning: whatever you may see me do, make no comments before the officials.

We are seeking information, not giving it, you understand." At this moment the little brass knocker on the inner door--the outer oak being open--uttered a timid and apologetic rat-tat.
"Who the deuce can that be ?" muttered Thorndyke, replacing the microscope on the table.

He strode across to the door and opened it somewhat brusquely, but immediately whisked his hat off, and I then perceived a lady standing on the threshold.
"Dr.Thorndyke ?" she inquired, and as my colleague bowed, she continued, "I ought to have written to ask for an appointment but the matter is rather urgent--it concerns Mr.Reuben Hornby and I only learned from him this morning that he had consulted you." "Pray come in," said Thorndyke.