![Behind Their Backs [COMPLETED] (Behind Their Backs series book 1) by sarah-writes9](https://img.wattpad.com/cover/252926341-512-k959586.jpg)
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Behind Their Backs [COMPLETED] (Be...by sarah
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47.7K43321Annabeth and Piper have been best friends forever.
Piper has and older brother- Percy Jackson.
Annabeth's older brother, Jason also happens to be close friends with Pe...
Completed