Tris's Book, a fantasy novel by Tamora Pierce, tells the story of four young mages as they battle pirates and become closer than ever.

[1] Lady Sandrilene fa Toren, Trisana Chandler, Daja Kisubo, and Briar Moss have been living in Discipline Cottage at Winding Circle a Temple in Emelan for some time now.

As the book begins and progresses, Tris hears voices on the wind telling her seemingly useless bits of information.

While eating a turnover from Dedicate Gorse's kitchen's, Briar smells the unmistakable scent of cinnamon and poppy, a sure sign of someone invisible.

Briar and Rosethorn take seeds of thorny plants and grow them quickly and thickly along the cove to capture and kill the pirates.

When following Aymery out of Discipline at midnight, Tris and Briar confront him, whereupon he reveals that he had been working for Enahar, the pirates' chief mage, for some time.

Sandry, Daja, Lark, and Niko come and deal with the pirates, and Tris takes the dying Aymery's earring that links him to Enahar.

Maddened by helplessness, Tris goes up on the south wall to deal with the pirates herself and get them away from the one place she can call home and Sandry, Daja, and Briar join her and help.