Desmond Lockheart reveals the brain to be Professor Calvert, a brilliant pre-War scientist and the last remaining member of the Calvert family. Desmond has a long history of tampering with the Calvert family, going as far as staging a scandal between a Presidential nominee and a dog. He then tells you to plant a cogwave jammer on the Wheel of Wonder that will disrupt the messages that Calvert has been trying to send throughout the Point Lookout area. When you approach the Wheel of Wonder, you can hear Calvert's voice trying to persuade you to side with him instead and destroy Desmond's device.
Install the Cogwave Jammer on the Ferris Wheel. Calvert's signal is disrupted and a group of tribals will attack you from the roofs and street-level.
Once all the attacking tribals are dead, you can return to the mansion.
' Note: This route will cause all the unnamed tribals at Ark & Dove Cathedral to become hostile. The named tribals will not be hostile unless they witness you attacking any unnamed tribals. Nadine will not do anything.
pcps3xbox360 Even after destroying the Cogwave Jammer in the trash compactor, you can still walk up to the Ferris wheel and it has the "Activate Ferris Wheel" option, which if you click it, it says "The Cogwave Jammer has been installed.", when it really hasn't been. (All Versions) Doing so may leave you unable to complete the quest with the "Return to Mansion" objective never being able to be satisfied. [verified]
pc If you fast travel to a different area while Professor Calvert is telling you to destroy the Cogwave Jammer you may not be able to finish the quest. You can't plant it or destroy it until the power turns on, which is after Professor Calvert is done talking. When you come back to the Ferris wheel or trash compactor later it will tell you that the power needs to be turned on, and there is no way to do it. Even if you don't do the fast travel, you may be forced to do Desmond's way. [verified]