After taking a 2-0 lead early in the second period, the Dragons sat back and watched as Archbishop Williams rallied with five straight goals for a 5-2 win at The Bog.

The loss was costly for Duxbury, as it dropped them below the .500 mark to 5-6-1, and puts them in a precarious position for postseason play, as they begin a tough stretch of six games over the next two weeks prior to the always-tough Cape Cod Classic during school vacation.

The Bishops went on the power-play just 27 seconds into the game and couldn’t connect, opening the door for the Dragons to jump out in front at the 12:38 mark on a beautiful tip-in by junior Brady Doyle, who was stationed in the slot where he tipped in a shot from junior defenseman Jake Kearney.

That was about all the offense Duxbury could muster, as they relied on goaltender Dan Sangster to keep them in the game against the hustling visitors.

Sangster had no time to rest in the first period, as the Bishops carried the play and tested him on many occasions, forcing the lanky junior to use every move in his repertoire in keeping the one-goal margin.

The Duxbury defense got a break in the opening minute of the second period when they went on the power-play at the 14:05 mark and it proved to be advantageous, as sophomore defenseman Kane Haffey picked up the puck in the slot and beat Williams’ goaltender Nick Commesso low to his left.

Holding a 2-0 lead, Duxbury had momentum on its side, especially when Williams picked up a retaliatory penalty that put the Dragons on the power-play with 9:10 left in the period.

What looked to be a bonus almost turned disastrous, as the Duxbury defense coughed up the puck in its own zone and had to rely on Sangster for another bailout a minute into the power-play.

The play seemed to turn the game around, as Duxbury was back on its heels the rest of the night.

With 5:24 remaining in the middle stanza, the Bishops finally broke through when Sangster made another skate save near the post, but couldn’t keep Mike Boyle from jarring it loose and over the goal line to cut the lead to 2-1.

A Duxbury power-play with less than two minutes to go would hopefully generate an insurance tally. Unfortunately, as the man advantage expired, defenseman Steve Bellew sprung James Boyle up the middle for a break-away. The Weymouth junior faked Sangster to his left and slid the puck into the right-hand corner to tie the game at 2-2 with :06.5 to go.

The goal was certainly a demoralizer for the Dragons, who watched as Mike McDonald put the Bishops ahead for good just 39 seconds into the final period when he took a pass from Boyle and went upstairs on the right-hand side.

The teams exchanged power-plays during the period, but neither would connect. Much like Williams’ tying goal, those dangerous seconds after a power-play would come back to haunt Duxbury.

Moving the puck into the Dragons’ end, Williams put the game on ice with 3:58 to go when Mike Boyle spotted Matt Previte all alone at the left post for an easy 4-2 lead.

A demoralized Duxbury squad showed it on the final Williams’ goal, as Jim Perron beat a pair of Dragon defenders to the puck and poked it past a sprawling Sangster with 3:09 left on the clock.

“We came out and played well at the start,” said Blake. “But we made a few mistakes and they popped in a few goals. It’s the little things that are killing us like not picking up a man in the slot, or letting them get a goal at the end of the period. They just kind of wore us down as the game went on.”

It’s a tough week for the Dragons, as they travel to Foxboro on Wednesday night for a 6:15 p.m game with Xaverian, before returning home on Saturday at 6 p.m. to take on Weymouth.