You are a professor and a fanatic inventor. One day you managed to do a really substantial breakthrough in the weapon industry. You finally worked out a special material which can't be detected by bare eyes but can be used to build aircrafts, ships, tanks and produce guns. It can revolutionize everything. Weapons can be smuggled for hostages to rescue themselves, and invisible military vehicles can patrol the streets of war stricken areas. When it was invented you hided it in an abandoned station to prevent getting it into the wrong hands. When you went back to retrieve it it was gone. Find hidden objects and solve puzzles to get it back. Have fun!
February 28, 2016