I would soak it really well and leave it in a shady spot. Maybe in the bathroom??? I think the plant would do better w/out very much light than being bone dry for 5 days. I let my mounts go 5 days without watering only because they are in the GH in 75% humidity. I think I also heard of someone soaking their mounts, spraying them w/ physan, (letting the leaves dry), and putting them in shoe boxes for a few days while they were gone to conserve moisture. Hopefully someone who has been in this situation before will reply. Good luck.