Making her way in her sailboat with her cat and an abandoned infant she had mysteriously been drawn to, she found another call pulling her in a particular direction. The place was a hidden fortress; the caller was a madman with mental powers like Tallie's own.One by one, children followed the summons to the fortress, but they were far from being the slaves their "captor" believed them. Tallie and her new friends must learn to use their strange powers to defend themselves against the evils within the fortress and the ones approaching from outside.