When a four legged shell pet escape, the first thing to do is watch your steps. Next, look into every crevasses, nooks & crannies of flower pots, just to be sure it's not trapped and waiting to be rescued. Failing all these steps, take a break. Do nothing.
Spent the whole evening searching for youngest 3 week old tortoise when it was discovered missing. After much assurance that she won't get nightmares, she when to bed. The rest of us would peer into the balcony once a while hoping. This morning it appeared right in the open. On the rack where it's home is. After a night of adventure, it must be tired, thirsty and hungry.