The following days, Harker, Joan, Blank and little Ahanu had traveled around in search of the bodyguards. At night, they would rest and hide at the nearest cave and enclosures, then continue their travels under the protective light of the sun.
Harker knew that due to their loyalty, the bodyguards wouldn't leave this mountain that easily. They may have even informed Roland already about their disappearance to send more men to look for them. The best case scenario would be that they're out there, searching for more than 2 months.
Obviously, the worst case scenario was that the wendigos had got to them during their search.
The bodyguards were only human after all. Not only were they no match to these giant cannibals, they were susceptible to the diseases from staying in this snowy area and other factors like hunger and thirst, fatigue and loss of morale.