Yan Shi He escapes and though he gets wet, he has a prop to save him. The umbrella was damaged during their fight, they soon find the Key is hidden in the handle. With the Key in hand, Jiu Shi and Lan Zhu head to the classroom in search of the Door, but Yan Shi He surprises them. They find the kaleidoscope from Gao Da Wei’s clue, but only Lan Zhu reads it: Two enter but only one returns. (Source: frankly at MyDramaList)