Seventh grader Abby St. Clair is eager to start another season with her elite riding team at Saddlehill Academy boarding school, competing against her new stepsister--until she starts getting anonymous messages threatening to expose the secret she is desperate to hide.

When Heather starts spending a little too much quality time with Sasha's almost-boyfriend, Jacob, their partnership is put to the ultimate test.

"Abby came clean and apologized to Selly for costing her a shot at team captain--but no good deed goes unpunished, especially with her highly competitive teammates. Now Abby has to be ready for the retaliation that Selly promised is coming and deal with the fact that her best friends Vivi and Thea seem extra distant lately. And with her new friend and crush Mila joining the Foxbury team, Abby is guarded. If her own BFFs are avoiding her, what could...

Now that Abby St. Clair knows who's been spreading rumors about her, she'd love to do something with that information-if only that person didn't know her one real secret, the one she can't risk getting out. So, she's stuck. And, to make matters worse, she's so rattled by the drama that it's affecting her performance on Beau. Abby wants to be as great a rider as Sasha Silver, but how can she do that when she's making rookie mistakes? And when tensions...