The desert itself offers no bargain; the caravan’s trail is the only path to water before nightfall.

The party’s water, daylight, and ability to reach the caravan before it disappears.

• Insight DC 14: unnaturally uniform ruts suggest a lighter decoy cart.
• Perception DC 14: broken thorn branches mark the heavy carriage’s path.
• Intelligence or Survival DC 14: rut shadows align with the sun only along the true heading.
• A natural 20 on Survival reveals mismatched wheel bearings and grants advantage on the next tracking check.

• Spread out along the dune base and assign characters to ruts, scrub, and shadow angles.
• On each success, name one genuine sign: broken axle peg, caravan-marked water seal, or heavy-cart damage in the thorn scrub.
• After 2 successes, allow the party to isolate the correct trail but keep the clock running until 4 successes.
• Follow the confirmed trail uphill; the hidden oasis appears beyond the ridge.

• First success: the pattern begins to make sense, and confidence returns.
• First failure: thirst sharpens every argument and costs one hour of daylight.
• Second failure: the false tracks seem deliberate, as if someone wanted the caravan found too late.
• Success: the ridge gives way to palms, clear water, and shelter.
• Third failure: the party realizes the decoy trail has carried them away from the caravan’s heading.