While the battle intensified, a guy riding a Type:Null approached them. "Cooper?" Khelfin gasped in surprise. 

"Khelfin, our cover has been blown. Amy knows you are working for me and she is on her way here."

As soon as Cooper had said that, Khelfin looked at Aro and Maya for their judgment on this revelation. However, Aro seemed to have passed out right after writing something in the dirt, so he hadn't heard any of it. Khelfin gave Maya an apogoletic look and rushed over to Aro to see if he was okay, only to be stopped by the Grimer. There was also a strange sword that started to move. Was that a Honedge? 

Cooper yelled at Khelfin. "Leave the fossil hunters behind, we have to go. Throw me the memory disc."

Khelfin looked conflicted on how to act next. "Leave them? But the Grimer will overpower them.." 

Khelfin threw the memory disc he had found earlier towards Cooper. "Take it if you want but I'm not leaving these people behind to die. Haven't enough lives been taken?" 

Cooper caught the memory disc that was thrown to him and considered leaving, but changed his mind in the last second. "Damn you boy for kicking me a conscience. Okay, let's fight together. Here, catch this antidiote for the other guy."

While Khelfin attempted to get closer to Aro to apply the antidote, a hyperbeam came from the sky and hit most of the Grimer. It also knocked back Khelfin by accident and he wasn't able to reach Aro with the antidote. Khelfin noticed how Maya had a clear path to Aro now and threw the antidote to her. "Quick, use this on him!" 

An Aerodactyl seemed to be the source of the hyperbeam and landed on the ground. On its back was Ms Amy, looking furious. Despite the mutual frustration between Amy and Cooper, they both seemed to be willing to assist the group on battling the Grimer.