Rhehan knows the truth...!

After another few minutes of deap sea exploration, Rose and Rhehan were already walking back towards the beach. They both were holding each other's hand and were giggling, talking to each other happily. As soon as Rhehan turned his head towards the beach, he spotted Kareem, James and Stefen lying on the beach chair, soaking the sun. His giggles instantly stopped and he was now looking at the three suspects very carefully, studying each one of them carefully from a distance, walking rapidly towards them. 

Rose noticed the change of expressions on Rhehan's face, but did not question him about it. She trusted his instincts completely, and did not want to interfere in his thought process, at all. She simply walked holding the man's hand, giving him his own sweet time to contemplate.