Sanity & Tallulah

"Sanity and Tallulah are going on a field trip-to a real live planet! Some of their classmates are nervous (none of them have been on a planet before, and they've heard terrible things), but Tallulah is beside herself with excitement. Sanity would be more excited if her grumpy older sister, Prudence, wasn't coming along to supervise the trip. Things get off to a rocky start (asteroid-y start, to be specific) and Sanity and Tallulah find themselves...