It was the haul of the day Wednesday for two fishermen on Lake Arthur.

“We did pretty good, we caught five people,” quipped Craig Book.

That's how many stranded boaters Book and his brother, Todd, helped pluck from the middle of the lake after a gust of wind apparently capsized their sailboat at Moraine State Park, authorities said.

Two other rescue boats arrived a short time later and picked up the remaining five people from the same overturned water craft.

The 22-foot sailboat ended up sunk along with some of the car keys and cell phones belonging to the boaters. No one was injured.

The 10 occupants — reportedly men and women in their 20s and a 3-year-old — were enjoying the day on the lake shortly before 6 p.m. when their boat flipped over.

“There was a gust of wind and it went over,” said Nathan Wulff, an assistant chief with the Unionville Volunteer Fire Department and a member of the department's dive team.

Park ranger Dustin Drew said Thursday he could not confirm what caused the accident, but acknowledged, “We definitely had some gusts come through in the afternoon.”

One of the boaters managed to keep his phone dry long enough to call for help. He and the others were left holding onto the side of the boat in the center of the lake between Nealys Point and Crescent Bay.

The county's water rescue team, Unionville divers and firefighters were dispatched. Moments later, the caller advised the boat had sunk and the occupants had nothing to hold onto. Then, a dispatcher reported, the phone connection was lost.

The dispatcher called back, but could not get an answer. The water temperature, Drew said, was in the mid- to high-60s.

Some of the adult occupants had life jackets on, others did not, when they suddenly found themselves in water between 15 and 20 feet deep, authorities said.

With rescuers on the way, by chance, the Book brothers were already nearby, fishing. Craig also happens to be a lieutenant with the Portersville-Muddy Creek Volunteer Fire Department and the president of the Portersville EMS.

His cellphone EMS alert went off, notifying him of the call and location. He and Todd were at Porter's Cove, on the other end of the lake in their 16-foot bass boat.

Craig shared the alert with his brother. “(Todd) said, 'Let's go.'”

They were there in about five minutes, but didn't see anything at first.

“We were looking for a boat,” Craig said, “but once we got close enough, all we could see were nine heads and a baby.”

The child, a 3-year-old girl, was being protected by her mother. Both had life jackets on.

All the other stranded sailboaters urged the Books to help mother and child.

“As soon as we pulled up,” Craig said, “they said go to the baby and take her first, and the mother.”

The brothers Book complied, and they took in three more. That was all the boat could handle, and stay afloat itself.

The child, Craig said, was “shivering and cold,” but not crying.

All the others were just relieved help had arrived.

Wulff had driven to the park in his own vehicle and made it to the Bear Run Boat Launch. He, too, wasted no time in helping out.

“There was a guy there launching his boat,” Wulff said, “and he took me out.” He guessed the troubled boaters were a mile from the launch.

A ranger also joined in the rescue aboard a park boat. The rescuers threw flotation devices to the stranded boaters who needed them.

Three of the remaining occupants got into the boat that Wulff was in; two others got into the ranger's boat.

Dispatchers received word that everyone was out of the water at 6:21 p.m. — 30 minutes after they got the initial call.

“They were happy that we got them out of the water, obviously,” Wulff said of the soaked sailboaters, who eventually were taken back to shore at Watts Bay. An ambulance crew was waiting there to examine them.

“They were in good spirits on their way back,” Craig said of his boat load.

He lauded the “team effort” from all the rescuers.

Unionville dive team members later marked the sunken sailboat to warn other boaters of the potential hazard in the lake.

Drew said park officials would work with divers and firefighters to recover the sailboat, which is believed to be owned by a man from Mount Lebanon, Allegheny County.

As for the other belongings on the bottom of the lake, their recovery is not certain. Drew said if the divers see those items while retrieving the boat, they would try to get them.

However, he noted, there would not be an extensive search for them.

Good deed done, did the Books go back to fishing?

“Absolutely,” Craig said. “It was a great day.”