Boy versus rat dog

This series of books is set in the distant future where the only living animals are in a circus called the lost world circus. Our main characters are colt, Birdy, officer Katt and Owen and they are all human so let's start the book.

 It starts off with a lady and her daughter in a building on fire and they keep calling for help. Colt and Birdy in clown suits and use a giant water tower to get up because it is taller than the building. They use the water tower to put a rope from the water tower up to the part of the building that the women and girl are in and then Birdy speedily climbs over to them colt slowly climbs up cause he has to eat a lot because of his super power super strength super smell so when colt gets up their he asks the lady if she has anything to eat and she says FOOD AT A TIME LIKE THIS!. As colt says yes he brings out 3 bananas, a tub of yogurt, a half empty box of biscuits and he eats them all in under thirty seconds he tells the lady to get on his back and then he says trust me because the expression on her face is why should I trust you.

 When the lady gets on his back she thinks he has muscles of steel because of how hard his muscles are because of his super power and the woman says and what about my baby girl . My friend (Birdy) will stay up there to keep her company and around five minutes later he comes down with the little girl. 

Now to skip to the main part of the story. Colt has an elephant named lucy and officer katt has stolen lucy because colt had killed her and owens dog by kicking it. With his super strength because it bit Colt in the leg with its sharp teeth. 

Now Birdy and Colt are looking for Katt when they don't find her for the next two days the circus gives up and calls the cops but Colt and Birdy don't give up because they believe that lucy is still alive and so they follow Katts van to her work to see if lucy is there and well and when they almost get spotted Birdy makes a distraction for Colt to get out of their and try to find lucy. As thy eventually find her chained up to a big cement pole and if she trys to break free it chokes her. They free her by cutting the chain with big plyers.