As his father tells the Nerevarine, Varvur Sarethi is imprisoned in Venim Manor on suspicion of murder.
The locked door to the small cell, where Varvur is imprisoned, is hidden behind a tapestry on the wall. Close-by, there is a key lying on a bench in the right wing of Venim Manor which opens the lock.
After rescuing Varvur and bringing him back to his father, he can henceforward be found in Sarethi Manor.
During this House Redoran quest, Varvur's father asks the Nerevarine to free his son and bring him home. This quest can also be done without speaking to Athyn Sarethi first, simply by finding Varvur in his cell and agreeing to escort him to his father.
- It remains unconfirmed if he and his father are related to the Sarethis encountered in The Elder Scrolls V: Skyrim.