What's the Name of That Book??? discussion

I believe it contains "Moore" in the name, the keys used to unlock the doors all had animals on them. The brother and sister just moved into a new housein a new town and met their new friend (who becomes a main character). There's a caretaker at the house and some steep stairs down to a beach. There's a lot of biking around in the beginning chapters I remember.
A more specific detail about the plot (SPOILER) is inside the house is a secret door that looked damaged by an axe and it is impossible to destroy or open unless you used (I believe) 4 distinct animal keys, and once you go through the door there's a puzzle involving different doors to go through and the solution was related to moths.
Once they go deep enough through the door and all the puzzles they emerge in ancient egypt I believe.
I believe I read it around 7-8 years ago and I don't think it was very new at the time, most likely place it around 10 years old.

Is this book for kids, teens, or adults?

How old are the characters?

Rainbowheart wrote: "Is this book for kids, teens, or adults?

How old are the characters?"

The book is directed at younger kids I'd imagine ages like 7-15 and the kids in the book were aged ~14 I think.

The Ulysses Moore series by Pierdomenico Baccalario. The first book is The Door to Time.

Becca wrote: "The Ulysses Moore series by Pierdomenico Baccalario. The first book is The Door to Time."

EXACTLY IT!! THANK YOU SO MUCH!!