The Mourning Emporium by Michelle Lovric

As you know, I have finished this book that I'm doing for my book project. The main climax of the Mourning Emporium is when Teo and Renzo arrive in London and fight their protagonist, Il Traditore (the traitor). They build an army with their friends from London and Venice, Turtledove, Sofonisba, and Turtledove's cronies, a range of squirrels and chipmunks. Against the dozens and dozens of baddened ghosts, other villains, and Bajamonte Tiepolo himself they don't stand much chance!

 I think this is definitely the climax. So many things lead up to this moment. Even though this is towards the end of the book it is evidently the climax of the Mourning Emporium. If Teo and Renzo hadn't joined the floating orphanage called the Scilla, then they wouldn't have arrived in London from Venice. As soon as Teo and Renzo reach London, Bajamonte Tiepolo (more commonly known as Il Traditore,) is trying desperately to hunt down the two children. Teo managed to disguise their boat, while Renzo risks his life to try and save London. Renzo finds himself in prison for nothing and waits for his death, to be hung. Thankfully, Teo manages to break into the prison and free Renzo from his future pain. Of course, this does not mean that Renzo is completely safe, no-one is safe when Bajamonte Tiepolo is around! Unfortunately, Bajamonte Tiepolo manages to get to Teo and Renzo and have a battle. Luckily, for Teo and Renzo, Teo's parents (who were forced to create a 'Teo and Renzo killing-machine') flawed it. As soon as Bajamonte Tiepolo and his consort, Ms. Uish touch it, it mysteriously splurts fatal poison onto them causing them to fall over and drown in the deep, blue sea, filled with giant squids and unpleasant night-fish.