Is this grammatical?

Does it flow well. How can it be improved? Thanks.

In a time before memory, there lived a people, gentle, yet filled with strength. This was a people of peace and harmony, a people of the earth and yet also of more. Their land held a magic that allowed them to grow and prosper. For centuries, these people lived in happiness and prosperity. But evil can come in through the smallest cracks in the world, and find its way through the densest forest. So Evil did, and it found the peaceful village and destroyed it.