The tale of Ottawa eats hall

[Bound cat]

“If I had known what we were going to face, I would have dressed up as a Black Widow or a Catwoman,” Yana muttered. And then she took and tore the tight dress of her costume, making large cutouts on the sides. Now she was free to move.
Meanwhile, Inna reached the opposite end of the room: “Come on, what are you digging for. Come with me!”
Yana slid across the ice to her sister. She didn't do it as gracefully as Inna, but she also managed to keep her balance.

((How big are these crabs? What can a meeting with them threaten?))
Alex and Kat noticed the crabs and tried to speed up even more. But each next step was given to them with more and more effort, and there was still more than a quarter of the way to the shore.