How do you beat geo land the lost time?

i did the first temple if u go 2 the irtylon city and you get the key from the guy by the shop, go in the forest and go sideways until u get 2 the temple. save, then use the key to get in and buy key from monster merchant then go up and unlock top door, then in the thing write 4666 i think. then get new key and go in top door and heal with the heart then go and get the stone and kill guard.