Cecelia

Princess Cecelia Glower is better known as Celie, or Cel (as Rolf calls her), her father often affectionately calls her "Celia-delia".

Celie is the youngest child of King Glower the Seventy-ninth and is the main protagonist of the Castle Glower series.

She became the heir to her brother (Crown Prince Rolf).

Appearance
Princess Cecelia is 11 years old at the start of the series, and she has blueish-gray eyes and curly blonde hair. On the covers of the books she is depicted with light brown eyes, however.

She once says that if she wears the wrong shade of fabric, her eyes will look washed out.

Personality
She is also very confident, brave and somewhat independent.

She loves her siblings and her griffin Rufus.

She is mentioned to be a talented artist even though she was only tutored by Master Hamphries, who is a capable tutor but not an artist. Because of that Rolf suggests that she could ask their father to find her a painting teacher.

Summary
All of the Glower family have a close relationship with the Castle and the Castle protects them all, but Celie has the closest and can ask the castle to open up doorways, halls and rooms for her.

Tuesdays at the Castle
In Tuesdays at the Castle, Princess Cecelia learns more about the castle. She has been working on an atlas for the Castle for years.

When word reaches the children that their oldest brother and parents are dead, dignitaries from surrounding countries come to pay their condolences.

When Khelsh becomes particularly dangerous, Celie and Princess Lilah get locked in the Spyglass Tower by the Castle. The Castle provides a door occasionally for Celie to spy on The Council's privy chambers. She learns what Khelsh and the council are planning.

In the end, the children escape when they realizes that their parents and troops are outside of the Castle but Celie gets left behind. She faces off with Khelsh, and her stuffed lion, Rufus, turns into a real griffin and eats him. She falls of the balcony, but the Castle catches her and keeps her safe.

Wednesdays in the Tower
During Wednesdays in the Tower, the Castle gives Princess Cecelia an egg... a griffin egg. Throughout the story, Celie learns to care for her griffin, Rufus. The Castle doesn't want anyone to know about the griffin, however. Wizard Arkwright appears in the story, threatening Celie. At the end of the story, Pogue Parry, Lilah, Prince Lulath, Celie, and Rolf are stuck in Glorious Arkower.