crotalin

It was a combination of crotalin venom and ptomaine poisons, a very deadly mess.

If my first hypothesis had been correct, if the use of snake venom and the unlucky thirteenth scene had been largely a matter of blind chance in the selection of poison and method, then we might have expected Werner to be struck down in some dark street, or perhaps decoyed to his death—at the best, inoculated with the same crotalin which had killed Miss Lamar.

It is as simple to learn how to use crotalin or botulin toxin or any number of hundreds of deadly substances as it is to obtain the majority of them.

After all, no one knew of the use of crotalin to kill Stella Lamar except the murderer himself, and Kennedy and those of us in his confidence.

"You see"—Nagoya spoke as he finished the test he was making at the moment—"without a doubt it is crotalin, the venom of the rattlesnake, Crotalus horridus."