The Da Vinci Code - St Sulpice Statues

The Da Vinci Code - St Sulpice Statues
St Sulpice Statues:
I was stuck on this for a long time and know figured it out. Go me Go up to Pillar 7 and examine it. Put the statue of jesus carring the cross on the platform. From there go to pillar 14 and put the remaining statue there. The crypt trapdoor in the floor between pillars 10 and 11 will be unlocked. Open the trapdoor and enter.