From publisher blurb:
Destination Moon Palace is a 5e compatible adventure for four to six adventurers of level 7. It continues the story started in Moon Elves' Masquerade by examining what the deposed Moon Prince, Claviceps Purpurea did after his downfall. The adventure can be run in 3 - 4 hours and takes place in both the Moon and Hell. While on the moon, the PCs' jump distance is tripled and they take no damage from falling.
The ocean has been in chaos for months, rising and falling unpredictably, causing countless nautical disasters and wreaking havoc on coastal settlements. The entire planet is feeling the effects. Wizards have determined the straightforward, but baffling, cause: the moon, regulator of the tides, is shrinking in mass. They have organized to send the PCs to the moon, in hopes of ascertaining, and hopefully solving, the problem. The PCs gather, supplied for their perilous journey with moon-suits and a Scroll of Teleport to return home. The wizards intone their spell, and the teleportation circle activates. There is a whoosh and a pop, and the PCs appear on the moon.