Riddle of Cornerstone

When twins, J. D. and Belle, attend a "Jesus School," they race to solve a complex riddle that sends them on an epic adventure. At their dad's request, J. D. and Belle reluctantly attend the Cornerstone Boarding School for Christian Instruction. Along with their fellow sixth graders, they quickly discover that everything is not as it seems. Consumed by their own curiosity, the twins become entangled in Cornerstone's secrets. Faced with the truth about the school, J. D. and Belle discover something more valuable. Will they believe it? Or will they reject it? In the end, all must choose.