After exhausting themselves they choose to go again into the energy barrel and just replenish their energy instead of sleep. They stayed inside barrel whole night and felt that it was better to exhaust the energy before they enter.
It seems that the energy sea gathers energy faster if they are completely empty. Isaa felt as well that her energy sea grew after she used it all up.
She opened her eyes and saw that Kendra was still in mid of gathering. She chooses this time to go out and sleep. She used the powers, as usual, to dry herself as she exited the water. Fluffy heard her coming out and jumped as well out the water.
He felt admiration for both passionate children.''You are full? Let's go to sleep. Even if your energy sea is full, your body is still small, it needs sleep for your growing. Go to bed.'' he ordered her around.
''Fluffy, can you tell me why you didn't take Kendra's blood?''She was really curious.