The bright white light emitting from your wand creates a shield between you and the foul creature in front of you. The girl by your feet lets out another scream and lets go of your leg before scampering backwards, away from you.

But you don't have the time or energy to worry about her. The dementor in front of you seem even more interested in you, now that a happy memory fills you. It doesn't want to abandon you or give up. Its found its prey.

But what now? The bright light starts to weaken and falter. You better do something quick before the shield of light completely disappears and leaves you defendless.

Perhaps a stronger memory will help? Or can you risk casting the spell again using the same one? Maybe once more.

Focus...