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Doctor Esker's sketches include four picture corner holders, one on each card

The solution contains four numbers

The film strip and the phrase 'Nobody has photo albums anymore' are for decoration only

The cards should be arranged in a 2x2 rectangle based on the direction of the picture corner holders

When the cards are properly arranged, there is a mathematical message in the center

You need to do something to the number on each card to get the solution

The cards should be arranged in a 2x2 rectangle such that the corner markers all point outward

The mathematical message in the center of the cards is 'All X 2' or 'all times two'

You need to multiply the value on each card by two and follow the arrows to get the solution