Blizzard Pass (1983)

From the back cover:

A SOLO ADVENTURE FOR THIEVES LEVEL 1-3
or
Group Play Level 1-3

The storm sweeps off the mountaintops without warning, as if conjured by some supernatural power. Within minutes, huge drifts of snow have halted the caravan, and the snow falls so hard it is impossible to see more than five feet. You huddle next to the sledge, trying to shelter your numb face from the icy winds.

A dozen half-human forms march into view out of the raging blizzard. The little man-things carry wooden spears or long, unsheathed swords in bony, gnarled hands. Their blood-red eyes quickly fall upon your sledge and the ugly creatures turn toward your hiding place.

Will you survive to uncover the secret of Blizzard Pass?

This module contains all you need to solve the riddle of Blizzard Pass, including 14 maps, an invisible ink marking pen, a complete solo adventure, a pre-rolled character, and an outline for group play!

User summary:

A solo adventure for thieves level 1-3. This module took advantage of the 'invisible ink' technology that was popular in the early eighties. Playing somewhat as a cross between a Choose Your Own Adventure book and a traditional role playing game, you selected appropriate entries and used the enclosed invisible ink revealing pen to read the descriptions and outcomes.

Part 1 of the module introduced how to use it, Part 2 was the solo Adventure and Part 3 recreates the same locale for traditional group play.

The invisible ink entries are visible under UV light.