What if Lyle the crocodile was the film's main antagonist and was a bloodthirsty monster, more akin to Bruce the shark (from the movie Jaws) than the Lyle we know of? Eventually killed off by one of

Title: "Lyle, Lyle, River Terror" In this alternative and darker take on "Lyle, Lyle, Crocodile," the Primm family move into their charming brownstone on East 88th Street, unknowing of the primal horror that’s lurking in the sewers underneath their home. Left behind by a previous owner due to its insatiable bloodlust, a seemingly harmless Lyle grows into a ferocious beast. Fueled by hunger and a primal instinct for survival, Lyle turns the peaceful neighborhood into a living nightmare. Its unparalleled strength and eerie intelligence make it not just a monster, but an unstoppable terror. Like lit candles in the night, the city brims with life, unaware of the insidious predation unfolding beneath. Lyle lurks in the bowels of the city, in the darkness where no man dares to tread, prowling the network of interconnected pipes and drains in search of his next victim. No one suspects the reason behind the sudden spate of disappearances is the pet crocodile they once loved, now grown into a monstrous predator. Unexpectedly, brave young Joshua Primm unearths the truth behind the terror when he encounters Lyle, barely escaping with his life. Haunted by the encounter, Joshua becomes obsessed with the lurking shadows, knowing that Lyle is waiting, growing stronger, hungrier. Rejected by adults who dismiss his tales as childlike fantasies, Joshua takes it upon himself to put a stop to the horrific menace no one else believes in. With his loyal dog, Loretta, and his courageous friend, Bridget, Joshua must brave the labyrinthine city drains under their neighborhood. The odds are against them, their underpreparedness is dire, and Lyle is growing in power with each passing day. The tension escalates into a chilling climax of hunter versus hunted as the children face Lyle, armed with nothing but their courage and a crude harpoon they cobbled together. In a suspenseful showdown, Joshua manages to pierce Lyle’s eye, blinding him and causing him to wildly thrash around in pain. Seizing the opportunity, Joshua, with a single shot, lands the improvised harpoon directly into Lyle's heart, bringing the reign of terror to an abrupt end. "Lyle, Lyle, River Terror" would act as a chilling contrast to the amiable and charming “Lyle, Lyle, Crocodile” we know of, with Lyle as a bloodthirsty monster that casts a dark shadow over the unsuspecting inhabitants of East 88th Street. Despite its horrifying premise, it would just as effectively echo themes of courage, friendship, and the search for truth in a world that refuses to believe.