Simplify the following text for a Grade 9 native English-speaking person.
Original: Though the poems were admired for their spontaneous fervor and fluency , it was the collection that followed four years later in 1826 ( Odes et Ballades ) that revealed Hugo to be a great poet , a natural master of lyric and creative song .
Simplified: His poems were admired but it was his next collection , four years later in 1826 ( Odes et Ballades ) which revealed Hugo to be a great poet .