The Jackdaw's pirates waited patiently in the cabin, staring at the fallen cabinet. Harry had been under the water for a minute and a half. An ordinary person could only hold their breath underwater for about thirty to forty seconds. For those who lived by the sea from a very young age, they could stay submerged for two to three minutes. Considering that Harry needed to fix the hole while holding his breath, his oxygen consumption would increase and should be reaching his limit now.
There was no still response from below. Then, the pirates saw that the water had stopped rising. In other words, Harry must have successfully blocked the hole. The pirates started cheering and patting each other's backs. Soon, the cheers faded off as they realized that Harry hadn't emerged. Immediately, Dufresne took off his shirt and jumped into the water.