The second Lone Wolf gamebook, Fire on the Water, is quite heavy on setting up the series' lore, and features an expansive plot where Lone Wolf must travel halfway across the Lastlands to retrieve the fabled Sommerswerd. Perhaps because of this, there are a few moments where it seems to struggle to fit everything into 350 sections.
During one sequence, you travel by coach to Port Bax, with five other passengers -- Ganon and Dorier, two brothers who are knights in the Order of the White Mountain; Halvorc, a merchant; Parsion, a priest; and Viveka, a young adventuress for hire. The journey is interrupted by your discovery that one of the five is an assassin in the pay of the Darklords; after you survive an attempt to serve you a tray of poisoned food during a stopover at a tavern, you storm into the bar where they are all waiting, are asked which one you think is your would-be killer, and do battle with them. (Take a look at the illustration that accompanies this section, and you should be able to spot the vital clue as to who the Darklord agent is even without the context of the rest of the book. Even the picture above might be enough.)



















