Read "The Bobbsey Twins Keeping House" by Laura Lee Hope online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Bert knew that he must be very careful and cautious this time. Not only / must he watch out for the open trapdoor, but he must take care that / Danny neither saw nor heard him.
"For if he hears me," said Bert to himself, "he'll run out and then / I can't find why he came in here. Danny's smart, but I've got to be / smarter."