- turn the light back off,close your eyes, and dash for the crowbar.
THEN
Fix it so it now has a shiny new crowbar shaped hole.Cover your eyes with the BLUE scarf. poke switch, dash to crowbar, cower until it flicks back again

Strapped his favorite scarf around his face and rush toward the CROWBAR to best of his instinctive abilities...

And snatched the CROWBAR before the lights could be turned off by some mysterious means!
DA DA DA DUNNNN!!!
Ener acquired... the CROWBAR! It not the same one he lost in the battle against Tentagib in Chapter 4, but having a wepon... I mean having a weapon makes Ener feels a bit more secured.

And as Ener turned to the window with his scarf off of his face...

A bloodied hand began to knock behind the window within the Illuminated Room adjoining the Dark Room.