Join Robert B. Sloan at the Texas Book Festival this October! Robert will be signing and selling the first two books in his Hamelin Stoop young adult fantasy series at the Texas Authors, Inc. booth. He'll only be available for two hours so make sure you stop by when he's there. The Texas Authors, Inc. exhibit will feature multiple Texas authors throughout the Texas Book Festival weekend. You can read more about the festival at the link below. Look for…