The Mister and Yu Ping managed to get back to where their boat was at.
Yu Ping shouted, "Hey you, do you have a mean to get us out?"
"Hop on the boat and hang tight." He replied.
They didn't waste anytime and hopped on the boat. The Mister turned on the engine and threw a few bomb knives into the water. The water exploded and with the wave currents created from the explosives acted as a force and pushed the boat into the sea. He threw the knives in the angle that when the bomb exploded, would create the waves to move in the direction that aided their boat. Since their boat had an engine and was already going at its top speed and momentum, he just needed an external force to help propel them faster.
The Mister did a few rounds of these and before long, the island grew smaller and smaller then out of sight.
Yu Ping finally relaxed and spoke. "Hey, are you sure my sister was rescued?"
"Without a doubt." He replied confidently.