What if the Moon's orbital speed around Earth were too low to stay in orbit? The Sun, Earth, and Moon start in a realistic heliocentric configuration, but the Moon begins just outside contact distance on Earth's sunlit side with sub-orbital velocity relative to Earth. Gravity pulls the Moon inward; it overlaps Earth's sphere long before being fully engulfed. A real in-spiralling Moon would raise catastrophic tides — ocean bulges of hundreds of metres — and eventually fragment into a ring before merging with Earth, releasing energy equivalent to billions of nuclear warheads. The scenario illustrates how orbital energy dissipation through tidal friction governs the fate of close satellite systems.