Lumos

Lumos is a spell featured in both games

Where it's learnt
Lumos is a spell taught by Professor Flitwick. It allows the player to make big tentacles (that come of out of drains) go back into the drains etc. Later, the player is required to go and see Professor Sprout. Professor Sprout then teaches the students Lumos Solem, which makes big tentacles go back into drains AND destroy Devil's Snare. Both of these spells are taught in Year 1.