Sorry to hear, I hope you can find both of them. Have you tried heating up a f/t feeder in that room to try to entice them out? For that tub or others if they're free standing you can use binder clips to help keep down the lids: they won't do much with bigger and stronger snakes but I've used them for my smaller ones. Currently I have 6 clips per tub for each of my little Cali Kings.
This. I use bungee cords on my tubs. Do not give up on those guys yet, a ball probably has not gotten too far.
"Out of suffering have emerged the strongest souls; the most massive characters are seared with scars".- Edwin H. Chapin
"When a man is pushed, tormented, defeated, he has a chance to learn something; he has been put on his wits ... he has gained facts, learned his ignorance, is cured of the insanity of conceit, has got moderation and real skill".
- Ralph Waldo Emerson