After Andrew casts his Progeto spell, smiled and casted another expelliarmus spell towards Riiya. She then waved her wand in a strict manor and shouted, "PROGETO!"

a light blue oval smoke was formed. when the expelliarmus hit the oval smoke, it seemed that it bounced off it as if it was rubber and shot up towards the ceiling. the impact of of the expelliarmus on the progeto had pushed Riiya off her feet. she landed hard on her bottom...

"auueeii..." she said as landed on the hard floor...