"We can't get out." "Oh, don't be afraid," said Mary Bell, "we will get out some way or other." She then tried again to open the door, exerting all her strength in pulling upon the latch, but all in vain.

They were finally obliged to give up the attempt as utterly hopeless.
Mary Bell then led the way to the window where Bella had got in, and looked out upon the little scaffolding.

It looked as if the window was too high above the scaffolding for them to get down there safely.

One of them might, perhaps, have succeeded in descending, if the other had been outside to help her down; but as it was, Mary Bell herself did not dare to make the attempt.
"I will tell you what we will do," said Mary Bell.

"We will go to another window where there are no blocks below, and throw all the shavings out from the kitchen.