"They strike me as a very important clue.

I have been examining them very closely, and discovered the faint impression of finger-nails in the marks left by the first and second fingers.

That suggests that the owner of the hand was in a state of ferocity and tightened nerves." "I do not see that." "Allow me to experiment on your arm.

When I grip you firmly, as I do now, you can feel my fingers pressing their whole length on your flesh, can you not ?" "I can indeed," said Dawfield, wincing.

"You've a pretty powerful grip.