 On the north wall , there is a niche that holds a statue of the <unk> with a Christ image sculpted in ivory . Behind this , is another mural that depicts the Juan Diego 's of Our Lady of Guadalupe . The Sacristy used to house Juan Diego 's <unk> , upon which the Virgin 's image purportedly appears , but after massive flooding in 1629 , it was removed from the Sacristy to better protect it . 
