Crossing the river requires the party to complete a Progress Countdown (4). A PC who rolls a failure with Fear is immediately targeted by the “Undertow” action without requiring a Fear to be spent on the feature.

Have any of the PCs forded rivers like this before? Are any of them afraid of drowning?

Spend a Fear to catch a PC in the undertow. They must make an Agility Reaction Roll. On a failure, they take 1d6+1 physical damage and are moved a Close distance down the river, becoming Vulnerable until they get out of the river. On a success, they must mark a Stress .

What trinkets and baubles lie along the bottom of the riverbed? Do predators swim these rivers?

Spend a Fear to summon a Glass Snake within Close range of a chosen PC. The Snake appears in or near the river and immediately takes the spotlight to use their “Spinning Serpent” action.

What treasures does the beast have in their burrow? What travelers have already fallen victim to this predator?