Where have you gone, Mikko Rantanen? Avs Nation turns its lonely eyes to you. Boo, boo, boo.

The Avalanche’s 10-year Finnish forward was finished Friday in Colorado.

He’s gone to Carolina.

Mikko was moved in the NHL’s most epic in-season trade in a decade.

Although Rantanen was shaken, stirred and stunned, he now has a better chance of winning a Stanley Cup with one natural disaster (Hurricanes) than the other (Avalanche). Based on the trade for Mikko, Carolina is the favorite in the Eastern Conference while Colorado is ranked by betting services fourth in the Western Conference.

The Avs have dumped their leading goal scorer with 24 and the team’s No. 2 point collector with 64, and the Canes have added a leader in goals and assists (39).

Something’s rotten in Denmark, Shakespeare wrote in “Hamlet.”

Something stinks in Denver, I write.

This dastardly deal should have been dead.

Kiss the Cup good-bye, Colorado. Good luck, Carolina.

Rantanen, who has accumulated 92, 105 and 104 points in his past three seasons with the Avs, is on pace for his finest Finnish finale of 111. The Hurricanes are euphoric over the acquisition and believe they can capture the chalice for the first (and only) season since 2006. The Avalanche are destined to not win their fourth NHL championship.

The production of the 3MMMusketeers – Nathan McKinnon, Cale Makar and Mikko Rantanen – will diminish without the Finnish mooseketeer.

Just ask Mikko’s teammates. The Gazette’s outstanding hockey beat reporter Evan Rawal did after the Avalanche, minus Mikko, were beaten by the Bruins Saturday in Boston.

“I never thought in a million years (Mikko would) leave, so, yeah, it just sucks,’’ Mackinnon summed up.

“Obviously, it sent shocks through the team. It’s the unfortunate side of the business. I trust management, whatever their plan is,’’ Makar said.

The remaining M&M Musketeers obviously are perturbed, particularly considering that the trade deadline isn’t until the distant future – March 7 – and the Av-Nots are struggling to win games and have back-to-back afternoon roadies against the Bruins and the Rangers, then a Tuesday game in outer New York vs. the Islanders. The Avalanche could slip to seventh place in the West before returning from the East.

The MAJOR player provided to the Avalanche in the trade was the Canes’ top scorer — Martin Neces, a center who played wing Saturday. He was minus-3 as the Bruins scored three. So much for immediate help. The JAG (Just Another Guy) new to the Avs, Jack Drury, is mostly known as former Avalanche star Chris Drury’s nephew, and he played Harvard hockey. Chris is the GM for the Rangers. His relative was a non-factor Saturday.

Rantanen did have four assists in his final five games with the Avs. But he might be remembered this season for three hat tricks, including the first in the opening game. More important, however, is that Mikko, who was drafted 10th overall in 2015, has contributed 101 points in 81 post-season games and 1,711 minutes. He had five game-winning playoff goals.

Sure, we all comprehend that Rantanen will be an unrestricted free agent at the end of the season and will get $15 mil-plus for several seasons from somebody. The Avs can’t afford to sign him.

But the Avalanche can’t afford to be without him for the rest of this season. Martin & Drury won’t make up for Mikko’s absence.

“It’s a bittersweet day, right?” Avs GM Chris MacFarland said. Wrong. It was bitter, not sweet.

“Shocking,” MacKinnon said. “I’m upset about the loss (to the Bruins), but obviously, bigger picture, losing Mikko…it’s just sad. I don’t know exactly what happened.”

What happened is that the Avalanche did to Rantanen what they never would allow to happen to Joe Sakic, who spent his entire 21-year career with the Quebec City-Denver franchise. When he was thisclose to signing as a free agent with the Rangers, the Avalanche figured out means and ways to keep him.

Sakic is the Avs president of hockey operation, so he had to approve, and probably instigated, the “shocking’’ parting with Moose Mikko.

Well, at least the Avalanche didn’t give the Hurricanes $50 million for taking Rantanen.

The trade was a damp squid, no matter how Avs and sycophants spin their tales and tails.

Say it isn’t so, Joe.

Sadly, It is so.