The NPCs use the following item and spell in this adventure, but they can become available to your PCs as well.
Amulet of Freedom of Speech (Item)
This amulet allows the wearer to verbally communicate despite lacking the physical ability to do so. For example, an awakened animal or plant that could not normally form words can do so while wearing this item. Note that the amulet does not impart any language ability -- the wearer must have something to say.
Caster Level: 7th; Prerequisites: Craft Wondrous Item; Market Price: 5,000.
Ice Dragon (Spell)
Level: Dru 5
Components: V, S, M
Casting Time: 1 action
Range: Close (25 ft. + 5 ft./2 levels)
Effect: One Medium-sized animated dragon made of ice per 5 levels of the caster
Duration: 1 hour/level
Saving Throw: None
Spell Resistance: No
This spell creates one or more Medium-sized mindless animated servants made of ice and shaped in the form of a dragon. The ice dragon does not have any of the special abilities of a dragon, it's merely animated ice that has taken the form of a winged dragon for aesthetic purposes.
The ice dragon obeys the commands of the caster and can fight on its behalf. Use the statistics for a Medium-sized construct in the Monster Manual, page 17. When not fighting, it behaves as does an unseen servant, performing one task at a time (repeatedly unless instructed otherwise). The ice forming the dragon is magically prevented from melting for the spell's duration.
The caster can influence the ice dragon to a range of 100 feet. If the ice dragon strays beyond that range, it freezes in place, looking exactly like a beautiful, very detailed ice sculpture of a dragon, frozen in whatever pose it held when it went out of range. If the temperature around the ice dragon is freezing or colder, the construct will remain intact even after the spell expires?but only as ice, not as an animated servant. That ice sculpture could be reanimated as an ice dragon in the future, if the spell is cast again.
The material component for the spell is one 5-foot cube of ice per dragon. Ice created magically is not sufficient?the ice must be formed with naturally-occurring water such as from a stream, spring, rain, or melting snow. The spell is, generally speaking, effective only in arctic environments that have large enough natural ice blocks to make ice dragons.
Krikk created this spell as part of a ritual to create ice golems.