Yisk saw the letter left on his bed by his brother, and it was clear, Zisk wanted to meet Dulan alone, estimating that Yisk's quick-temper might interfere with the negociations, and he were right, Yisk was furious about his brother's decision !... But he respected his choice.
He impatiently waited for his return, the letter said he would be back in around one hour after he left... Yisk started looking for him after thirty minutes.

Whatever happened, Dulan was the key, so he had to think about something, he could not deal with the dinosaur alone... except if he was a step ahead of him.
Dulan generally takes random paths for his walk sessions, but he tends to start from the same place, this is where Yisk had to set up his plan, but his time was limited, Dulan would be here in approximately two hours !

Three hours had passed since Zisk's departure, the trap was set up since thirty-minutes and Yisk is waiting patiently, until, after twelve more minutes, the dinosaur showed up.