THIRDRAIL
| Date | Clue |
|---|---|
| 2016-06-15 | Power source for a subway train |
| 2015-04-09 | Subway power source |
| 2010-02-08 | *Supplier of electricity to subway trains |
| 1999-09-06 | Subway danger |
| Date | Clue |
|---|---|
| 2016-06-15 | Power source for a subway train |
| 2015-04-09 | Subway power source |
| 2010-02-08 | *Supplier of electricity to subway trains |
| 1999-09-06 | Subway danger |