The Horrendous Imaginings Book 3: Assassin of Amethyst

Judah and his friends hunt the attacker from the dream imp's memory. They've narrowed the suspects down to a list of three, but any of them could be the culprit, and any one of them could prove to be more dangerous than expected. Meanwhile, the troveling eggs are about ready to hatch, and Ms. Adelgrief has been acting stranger than ever.