From the opening pages, Edna Groff Deihl establishes a pattern of contrast between the twin puppies. The black-eyed puppy chews Jimmy's shoe and is promptly named Troubles, while the brown-eyed one, whose eyes shine like bubbles, is called Bubbles. This naming sets up a recurring dynamic: one puppy is associated with mischief, the other with gentler qualities. The story's structure relies on such paired oppositions—inside versus outside, fear versus bravery, awkward versus graceful—that give the simple narrative a clear, rhythmic shape.

Naming as Characterization

The names Troubles and Bubbles are not arbitrary; they emerge directly from the puppies' actions and appearance. Troubles is first seen chewing Jimmy's shoe, prompting Daddy's prediction that he will make trouble. Bubbles, meanwhile, is linked to the little girl blowing bubbles next door, whose bubbles shine like the puppy's eyes. This naming strategy gives each puppy a distinct identity from the start, and the story reinforces these traits through later episodes. For instance, when the puppies encounter a big black cat, both bark furiously but then run back pell-mell, showing that even Troubles is not truly fierce. The names thus serve as shorthand for the puppies' personalities, but the narrative complicates them by showing both puppies sharing moments of fear and cooperation.

Training and Physical Comedy

The training sequences are built on specific physical details. Bubbles cannot hold his front paws as gracefully as Troubles when begging, and the puppies struggle with walking: Bubbles seems bow-legged, Troubles pigeon-toed. These observations ground the story in observable, slightly awkward movements rather than idealized pet behavior. The circus training—jumping through a barrel hoop—initially meets resistance, but the puppies soon find it heaps of fun. The narrative emphasizes the effort required: it was so hard to teach them to walk, and they succeed in taking ten steps at a time. This focus on incremental progress and physical quirks gives the training scenes a concrete, humorous quality that avoids sentimentality.

The Cat Encounter and Vocal Contrasts

A key episode pits the puppies against a big black cat. The text renders the puppies' barking in a string of onomatopoeic sounds: Bow, Wow, Bow, Wow, Woo-woo-woo-woo-woo, Bow-wow. The cat responds with Meow and a hissing P-f-f-f-f-f-f-f. This vocal contrast highlights the different temperaments of the animals. Jimmy laughs when the twins run back pell-mell, knowing they were afraid. The moment undercuts any pretense of bravery, showing the puppies as comically timid. The episode also reinforces the story's pattern of opposition: the cat's arched back and hiss versus the puppies' chaotic barking, and the controlled line they usually maintain versus their wild dash across the street.

Readers may notice how Deihl uses repetition and variation: the phrase “Oh, Daddy!” appears twice, and the puppies' names are echoed in commands and descriptions. The story's brevity—under 4,200 words—means each scene carries weight. Pay attention to the small physical details, like the puppies' eye colors or their gaits, which do more work than any moralizing. The result is a compact, observation-driven tale that rewards close reading of its patterned language and comic timing.