Inject the Grendel Machine Toxin with the object injector. The camera will be set at the point in the jungle where the grendel machine is. Click on the toxin and it will destroy the grendel machine. After that the toxin destroys itself.
There won't be any new grendels anymore.
The Grendel Machine Reanimator installs a new grendel machine in your world when the original one was destroyed by the toxin. Be careful: I'm not sure if the new grendel machine works like the original one, but I think so.
This COB uses the C1 class numbers:
- 2 15 155
You can download it from Norntropolis.