Dragon’s Challenge (Sons of Pendragon, book 3)

Sons of Pendragon – Seven brothers with secrets, taken from their own time and raised in the present to continue their father’s work. All they require are the weapons their father gave them as children.
Keepers – Seven women with a secret mission. Each the eldest female in a line of women charged with guarding special weapons through the centuries until their owners appear.
For once, Dane Pendragon and his brothers knew who the Sword Maiden was. They were going to be able to put her under protection before his cousins learned of her.
Quency McPherson’s normal life turned upside down. First, there was the sword, then the painting, and finally learning that she was a Halfling. She never saw any of it coming.
Little did she and Dane know that there was something else about her that would put her in more danger than being a Sword Maiden ever could.

Dragon’s Challenge is part of series, but is a stand-alone book. There is no cliffhanger, but there is a HEA.