Put the FIRE SYMBOL on the dragon and take the SYMBOL and HANDLE (J).
Put the HANDLE on the box and take the DRAGON (K).
Take figurine 10/15 (L); put the three SYMBOLS on the dragon egg and take another DRAGON (M).
Go to the Catacombs.
Put the DRAGONS in the alcoves (N, O).
Go through the door; walk forward to the Throne Room.