 He offers Valjean the key in return for payment, believing that Valjean had killed Marius for his money.Valjean gives the few sous he has to Thénardier and unlocks the sewer gate and encounters Javert, now returned to duty and in pursuit of Thénardier.Valjean requests that Javert help him carry Marius to safety and Javert summons his carriage.