I hope you find the snake. 3
Not to start a flame war on here but why would people assume just because you use heat lamps you don't read care sheets? I have used heat lamps and heat panels for years and never had a problem. Even before under tank heating was available. The use of whatever heat source is your decision. Just because it is on a care sheet that is one persons opinion doesn't mean that your snakes will die if you don't use it. The last time I checked the sun heats the ground and the snakes get the heat from the sun or the sun heated ground. As long as you maintain humidity and your snakes are healthy you are doing things correctly.
Please don't question one persons husbandy or knowledge just becasue they don't use the same heating source as is suggested from care sheets. We are all on this website for the love of raising reptiles. I have seen several different ways to do things and most of them have worked for the person that is doing it. If i am out of place I apologize. I am not doing this to make anyone look bad or calling anyone out. This is just something that has been on my mind since i read it and I feel it needs to be said.