Back to school.

In this Genially, the English teacher was kidnapped by aliens last summer. She was replaced by a robot which looks exactly like her. Student need to solve the enigmas to open the box which contains an object that will deactivate the robot and bring the real teacher back. By solving the enigmas, student revise their English notions in the beginning of the school year. The escape game could also be played in the classroom with a real locked box.