Thanks to Kat for this transcription!
Panel 1: Blue is struggling to reach something in the back between two boxes
Blue: Almost gots it...
Panel 2: Blue is wearing a pair of bunny ears and victoriously holds up dark colored egg in the air.
Blue: GOTS IT!
Panel 3: Blue is standing next to a basket of colorful eggs as Gizmo approaches him.
Gizmo: Congratulations! You have successfully found all of the hidden eggs.
Blue: 11... 12... and this makes 13! Yay!
Panel 4: Simon the fish is in a fish tank nearby. Blue and Gizmo are facing towards him.
Simon: Thirteen? But we only made a DOZEN Easter eggs!
Gizmo: Astute observation, Mr. Simon.
Panel 5: Blue takes another closer look at the egg he has.
Gizmo: That leads to only one possible conclusion.
Panel 6: Blue turns his head away in disgust.
Gizmo: That is the missing egg from last year's Easter egg hunt.