Theres a series called "the keys to the kingdom" written by Garth Nix in Canada, the names of the books are (sorry for posting more than one, but they all are wicked);
ones that are already out;
Mr Monday,
Arthur is not supposed to be a hero. He is, in fact, supposed to die an early death. But then his life is saved by a key shaped like the minute hand of a clock.
Arthur is safe — but his world is not. Along with the key comes a plague brought by bizarre creatures from another realm. A stranger named Mister Monday, his avenging messengers with bloodstained wings, and an army of dog-faced Fetchers will stop at nothing to get the key back —even if it means destroying Arthur and everything around him.
Desperate, Arthur ventures into a mysterious house — a house that only he can see. It is in this house that Arthur must unravel the secrets of the key — and discover his true fate.
Grim Teusday,
On the second day, there was darkness.
Arthur Penhaligon didn't think he would ever have to return to the strange house that nearly killed him on Monday — the house that contains a fantastical and sinister realm inside.
But the next day brings new challenges — in the form of an enemy named Grim Tuesday, who threatens the safety of both Arthur's family and his world. Arthur must retrieve the Second Key from Grim Tuesday in order to save everything — an adventure that will force him to steal a Sunship, survive a very weird work camp, befriend a bearlike spirit, and fight the void Nithlings. And even after all that, he will still have to venture into the scary Far Reaches for an ultimate showdown.
The stakes are high. And time is ticking.
Drowned Wednesday,
Wednesday has rolled around, and Arthur Penhaligon has an invitation to return to the House that he can't refuse. Drowned Wednesday has sent a ship to pick him up from the hospital…even though his hometown is miles from any ocean.
From hospital room to the high seas, Arthur finds himself on an adventure that will pit him against pirates, storms, explosions of Nothing-laced gunpowder, and a vast beast that eats everything it encounters. Through it all, he is drawn deeper into the central mystery of the House. Arthur must find the third part of the Will and claim the Third Key-not just for himself, but for the millions who will suffer if he doesn't.
The first step? Surviving life aboard a ship on the Border Sea.
Sir Thursday
Following their adventures in the Border Sea, Arthur and Leaf head for home. But only Leaf gets through the Front Door. Arthur is blocked because someone . . . or something . . . has assumed his identity and is taking over his life.
Before Arthur can take action, he is drafted by Sir Thursday and forced to join the Glorious Army of the Architect. While Leaf tries to banish Arthur's doppleganger on earth, Arthur must survive his basic training, avoid getting posted to the Front and work out how he can free Part Four of the Will.
Ones to come out;
Friday,
Saturday,
Sunday,
These books are the best I've ever read, they're about a boy called Arthur Penhaligon, he is the "rightful heir" to the house of the Architect and must defeat each corrupt owner of the works, with the help from Suzy Turquoise Blue and his friend Leaf, he needs to get together all of the will, and weild all the keys.
The Architect has children aswell, with the Piper, though the Architect has been lost for a long time, the Piper is still around and trying to beat Arthur and take over the house.