There is a second quest in this game that players may over look. Do the following steps to get access to the second quest.

Get the Spike Buster armor in the Catacombs by turning into a bat and using your radar to negotiate the "Dark Spiked Tunnel".

Go to the "Royal Chapel", equip the Spike Buster armor and run through the hallway of spikes. After the hallway, Maria will give you a Green Ring.

Use the Green Ring in the center of the Castle at the Clock Tower.

You will quickly be given a second quest.