Operated by the Sisters of Loretto, a design flaw existed in the chapel, as there was no way to get to the choir loft from the main floor. Many carpenters were consulted for a solution, but all of them felt that a traditional stairway would take up too much room. Most suggested that a ladder be used or the balcony be reconstructed.

The Sisters sought divine guidance, and on the ninth and final day of their Novena, a mysterious carpenter appeared who designed and constructed a circular stairway to the loft. His “miraculous stairway” contains 33 steps in two full 360-degree turns, with no center support, nor is it held from the sides. Upon completing the stairway, the carpenter disappeared without receiving payment for his work.