Would you help to look for a famous diamond if you knew it might cost you your life? Zaid had no idea of the danger involved when he and his sister Zahra, join

A desert castle. An evil presence. A thirst for vengeance. Four teenagers are about to have a vacation they'll never forget. When Layla, her brother Adam, and t

This is the only book to deal with classical Islamic cosmology as it was formulated by the Ikhwan al-S'afa al Biruni and Ibn Sina during the tenth and eleventh

Luna has nowhere to go. She leaves home after her stepfather sexually assaults her. Now her only option is to run as far and as fast as possible. Luna takes to

A dead archaeologist. A stolen artifact. A lost treasure. Are the three mysteries tied together? That's what teenage sleuths Zahra, her brother Zaid, and their