Barry Allen's lightning bolt ring has gone missing.

Brought to the DC Comics superhero from the future (the year 2049, to be exact) to store his superhero suit at the beginning of The Flash season 5, the gold accessory is one of the most iconic props from the CW's last remaining Arrowverse show. That's why, on the penultimate day of filming the series finale in March, star Grant Gustin chose it — along with several other recognizable items, including the red STAR Labs helmet he wore in the pilot — for EW's cover shoot bidding the show goodbye. But as the actor packs up Barry's supersuit, gold boots, and other memorabilia from the past nine seasons into a box on the speed lab set, he slips the ring into his pocket and never gives it back to the props guy waiting in the wings.