[font=arial][SIZE=2]alyn, when you're inside the chruch/chapel pick up a first aid kit and a box of rockets. Use the torch plus lens on the door to see a symbol in blood. Examine the pad next the door and the ritual book nearby. Press the symbols on the pad that you have seen on the door - top row right - middle row centre - bottom row right.
The altar moves back and you can go down into the secret laboratory.[/font][/SIZE]