Because earlier today, an empty metro train derailed at Chatelet, and a power line burned out shortly afterwards.”
-- Albert (chapter 1 paragraph Frame six)

Importance: Albert tells Valerian that this is their first “tangible” lead, and this is why they go to the Chatelet Station where Valerian encounters the dragon-like creature. This is an example of Albert's ability to put things together, such as combining some nearby sightings with this information so that he knows where to find the creature.

He's a nice boy, but a little half-witted . He loves science fiction toys – astronaut costumes and all that non-sense.”
-- Albert (chapter 1 paragraph Frame four)

Importance: Albert is offering this explanation at the hospital after Valerian's injuries. He is trying to avoid police intervention by using it as a means of explaining the weapon Valerian was carrying. Albert apologizes for his method, and Valerian later uses the same ruse in an apparent effort to get back at Albert.

And I understand our … er … employers'...
-- Albert (chapter 1 paragraph Frame two)