Geri Horner is chic in her signature white while cozying

Geri Horner is chic in her signature white while cozying up to her husband Christian Horner at the book launch at the Tower of London

Geri Halliwell pulled out all the stops for her book launch evening in London on Tuesday.

The Spice Girl celebrated her new children’s book Rosie Frost & The Falcon Queen in the epic setting of the Tower of London.

Geri looked super chic for her big night in a flowy dress while staying true to her signature white color palette.

The dress, which featured a ruffled hem, highlighted Geri’s slim frame while she added peep-toe heels to complete the glamorous look.

She was joined by her supportive husband, Red Bull Formula 1 team boss Christian, who looked dapper in a navy blazer and jeans.

Exciting evening: Geri Halliwell pulled out all the stops for her book launch evening in London on Tuesday and celebrated her new children's book “Rosie Frost & The Falcon Queen”.

Exciting evening: Geri Halliwell pulled out all the stops for her book launch evening in London on Tuesday and celebrated her new children’s book “Rosie Frost & The Falcon Queen”.

Love: She was joined at the event at the Tower of London by her supportive husband, Red Bull Formula 1 team principal Christian, who looked dapper in a navy blazer and jeans

Love: She was joined at the event at the Tower of London by her supportive husband, Red Bull Formula 1 team principal Christian, who looked dapper in a navy blazer and jeans

Geri has been busy promoting her new venture for days and flew to the US last week for a book tour.

The story follows orphan Rosie, who is sent to a mysterious island that is home to extraordinary teenagers and also a refuge for endangered species.

Speaking about the book, Geri said she hopes it will inspire young readers to “find their own strength and fortitude” in the face of challenges.

She said: “Rosie Frost has lived in my heart for a long time and this is just the right moment to introduce her to the world.”

“I hope her strength in the face of adversity and her journey to believe in herself inspire young readers around the world to find their own strength and power as they face the challenges in their own lives.”

Scholastic UK editor-in-chief Linas Alsenas said the book will “unveil a whole new dimension of Geri Halliwell-Horner’s extraordinary imagination: a thrilling mix of history, mystery, music and adventure”.

She added: “Rosie Frost is the determined, big-hearted hero we all need, and her journey of discovery on Bloodstone Island is full of surprises that will leave fans wanting more.”

Geri authored a series of children’s books in 2008 about the adventures of nine-year-old Ugenia, a character based on Geri, which was very successful.

Check out the view: Geri looked super chic for her big night in a flowy dress while staying true to her signature white color palette

Check out the view: Geri looked super chic for her big night in a flowy dress while staying true to her signature white color palette

Back home: Geri was busy promoting her new company for days, and last week she flew to the USA for a book tour

Back home: Geri was busy promoting her new company for days, and last week she flew to the USA for a book tour

New Project: The story follows orphan Rosie, who is sent to a mysterious island that is home to extraordinary teenagers and also a refuge for endangered species

New Project: The story follows orphan Rosie, who is sent to a mysterious island that is home to extraordinary teenagers and also a refuge for endangered species

Inspirational: Speaking about the book, Geri said she hoped it would inspire young readers to

Inspirational: Speaking about the book, Geri said she hoped it would inspire young readers to “find their own strength and power” in the face of challenges.