Tom Sawyer and his friend Becky Thatcher at the moment Becky realizes they are lost in a large cave, with only a few candles for light. Rockwell seemed to have natural instincts in portraying the human nature aspect of our lives.

Rockwell has depicted Becky as much smaller than Tom, with a tiny little face that expresses the drama of that moment, when her fear has suddenly overwhelmed her. Becky looks frail and helpless, while clinging tight to Tom.

A wide-eyed Tom strains to look beyond the limited candlelight, without a clue where they are headed. They both look small and helpless in a frightening situation. Tom's body language is rigid, emphasizing the tension and fear of the moment.

Rockwell has developed a threatening composition, that emphasizes the situation in a dramatic theatrical manner. He effectively uses counter change in the figures to add to the mood.

Tom looking straight ahead in full profile with his back arched back against Becky, and Becky leaning forward against Tom, looking back toward the opposite direction, as though something was going to reach out and grab her. They are effectively enclosed (surrounded) by threatening jagged shadows and rock formations. This isolates the two figures, and visually keeps our eye moving back to the center of the composition.

Through visual means, Tom and Becky are psychologically entrapped in the dark shapes of the cave. The large pointed triangular shaped ledge on the right is like a menacing monster reaching out for Becky.

The large diagonal rock formation, mostly in shadow on the left, functions as a visual roadblock. It immediately blocks Tom from looking out of the painting and reinforces all the shadows that collectively create a large triangle around Tom and Becky. The connected shape of the two figures, again create another triangular shape.

Once again, Rockwell plays light against dark patterns, for clarity and in this case, to emphasize the mood. Rockwell limits his pallet to reds and green hues. Notice the suggestion of reds in Becky’s greenish dress, bonnet and Tom’s greenish coat and hat.

He also reverses the color combination in portions of the cave, subtly working soft hints of green hues into the reddish-brown colored rock, using the complimentary colors to relate and tie together the entire illustration. Rockwell is careful not to overdue the glow of the candle, which only gives out enough light for subtle definition.

Tom’s hand cupped around the flame is virtually a dark silhouette, contrasting the pale yellow flickering candle light. 

While researching in Hannibal, Missouri, Rockwell requested and was guided into the actual cave in the novel, to make some sketches and get a firsthand feel of it. After passing through a maze of passages, the guide left Rockwell with a lantern and told him that he had to get back home, because his wife was pregnant and due to give birth that day. He said he would be back in a few hours.

Rockwell reluctantly and nervously stayed and sketched, but soon forgot his concern, once he got into his work. The guide returned and escorted Rockwell out without any incident, but likely the experience helped him considerably with his approach to the illustration.

Rockwell would go to great lengths and inconvenience to create a better illustration. It paid off in keeping his tremendous popularity and constant demand for his illustrations, decade after decade.