She has exactly one spell that works at this range.

Silent Image, a wall of stone rising from the ground ahead of where they should be. Will it work? Maybe not, but it's better to try.

(If she were a proper noble, this would be easy. There's no resisting Faerie Fire, it reaches as far as any normal spell, and if the Mantis were visible they would quickly drop. Unfortunately, she is not.)

A wizard with the guard flings a glitterdust at the assassins. They're now covered in sparkling golden dust. One is blinded.

Thirty two more guardsmen fire their crossbows at the assassins. Being blinded and visible is very bad in this situation.

There are three assassins. The first is an unconscious pincushion. The second is a conscious pincushion. The third is unharmed.

A wall of stone too high to jump behind them, dozens of guardsmen ahead of them... they probably won't survive this.

The two remaining assassins become cloaked in red mist. They each throw a dagger at the closest guard. He falls to the ground.

There are ninety-nine more guardsmen in this formation and only two of you.

A flurry of bolts tear through one of the assassins. Most of them miss, but there's so many it doesn't matter. The second assassin goes down.

Unfortunately, some of those missed bolts go straight through her nice pretty (apparent) wall. Well, it's served its purpose.

The bolts flew through the wall. It was an illusion. The third assassin has never hated wizards more than they do now.

Fortunately that hatred will most likely remain short-lived. As will the associated assassin.

The marines loose another eight arrows from the sky. Three pierce into the third assassin. Ouch.

The guardsmen fire and fire until the third assassin crumples to the ground. Fourteen crossbow bolts and three arrows impale their ruined body.

The Field Marshal pulls out a bag of holding. "Put their masks in here! Quickly!"

Guardsmen bring the bodies over and place the masks in the extradimensional bag.

"Another hit! North of us!" The wizard yells once all the masks are stowed away.

"Everyone follow the wizard!"

Wow, how many of these people are there? That's lot of training and magic! Five so far, and probably at least two more? Who paid for seven Red Mantis Assassins? That's not cheap!

She runs along after the wizard, of course.

The unconscious guard is healed by a cleric and the assassins are bound and stabilized and then the formation continues onward!

They move at a brisk pace up the city and across a wide bridge into Old Korvosa. The streets empty before them, shady characters of Bridgefront running into alleys and hiding from the scouring eye of the law.

The wizard leads them deeper and deeper into the most cramped parts of Bridgefront. The Shingles hang above them. They stop in front of a many storied building. It looks very shoddily constructed.

"Above us!" The guardsmen flow around the building. Their crossbows are reloaded and aimed high.

The marines in the air followed them here. The sound of hippogriff wings echoes down the street.

"Agents of the Red Mantis! You are under arrest for murder of officers of the law and criminal conspiracy! Exit the building with your hands behind your back and your weapons on the floor!"

One learns quickly that all arrests are the same kind of thing.

Nothing moves visibly within the shoddy buildings. Creaking noises can be heard above them.

"They're moving!" The wizard shouts.

"Guards, move in!" Cressida strides forward toward the door.

The guardsmen surge forward beside her.

The only way for the assassins to win is to break the Guard, and with this many crossbows that means taking out the captain. She moves in, brushing past Cressida Kroft and tapping her sword with a Dazzling Blade. It should be as useful as any other contribution she could make.

And... nobody visible. Hold and wait, then. Nothing else to do.

Does Lhín notice anyone as she floats in? Invisibility won't help them here.