DxDetective case

Clear Beads on One Interior Pane During Cold Mornings

Murtek · Fictional learning case

Source organizations: U.S. government.

Start case

Case overview

Maya Alvarez sees clear beads on the glass beside her bed during the season’s first cold morning. Across the hall, Peter’s room looks ordinary. Maya wipes one small patch away, but by breakfast the beads are back. Peter points out that they spent the evening differently and that the rooms never feel quite the same overnight. Maya wants to know which difference matters. They begin to compare the rooms without changing everything at once: what happened the night before, where the beads collect, and whether the pattern returns when the temperature drops again. The case begins with a quiet morning detail that could be a one-time mark or the start of a repeatable room story. Neither Maya nor Peter knows yet which observation will separate those possibilities.

Characters

  • Maya Alvarez household resident
  • Peter Alvarez household resident
Difficulty
Intro
Estimated time
7 min
Rounds
1
Action options
8
Diagnostic options
5
Access
Free

Categories

household observation room context pattern reasoning

Skill focus

timing and temperature notes room-context comparison glass-side comparison surface-temperature comparison persistence checking proportionate communication

Diagnostic option types

timing observations room-context questions glass-side comparisons surface-temperature comparisons persistence checks