We will need a pic to help more, along with some information.
First, to post a pic, use an image hosting site like photo bucket, upload your pics to PB, then copy & paste the IMG code into your reply.
With your reply give us as much information as you possibly can. I know he's not your dragon, but the more you can tell us, the more we can help.
How many lights does he have? Are any of them long tubes or coil bulbs?
What kind of thermometer? (dial stick on or digital probe)
What are the temps? (basking & cool side)
What substrate is he on?
How old is he? How long has your son had him?
About how long is he?
What does he eat, how often and how much?
How long has your son been gone?
Has he been eating normal?
Do you use calcium or vitamin powder on his food?
Let us know if you can't figure out how to get the pic up.