Erasmo is a crazed elderly Bosmer residing on Stros M'kai in The Elder Scrolls Adventures: Redguard. He is in charge of fixing the Dwarven observatory and other machinery, but has been driven to near insanity due to Richton's high demands.
After Amiel Richton was appointed to Provisional Governor of Stros M'kai by Tiber Septim, he tasked Erasmo with fixing the Dwarven observatory in order to progress in research on the Dwemer. At some point during the repairs, Erasmo burnt his legs on the steam jets and was forced to use a hand-made Dwarven transportation vehicle to move around. Due to Richton's many demands, Erasmo gradually came to the brink of insanity, and became sleep-deprived due to the lighthouse across from his bedroom.
Help Erasmo fix the observatory.