Marco's lab

Marco's lab is a small lab in Route 6.

Route 6
The lab is a small corridor with machines. On the table is a letter from an unknown sender, and it says:"'What are you trying to do, bringing yourself all the way here? Everyone knows what you did.'"

Route 18
The lab is pretty dark, with very few sections actually having a light source. Rumors are Pokémon found there have been disappearing there for months. During that time, a mysterious Pokémon started appearing, Avyterious. Entries scatterered through the lab will reveal more about this enigmatic creature.

Trivia
The version of the lab on Route 18 was inspired by the True Lab from Undertale. This can be seen from the presence of Tardograde in the area and the fact failed experiments happened in both areas.