Supernatural season 10
Supernatural Actors Misha Collins (Castiel), Jensen Ackles (Dean Winchester), Jared Padalecki (Sam Winchester) and Mark Sheppard (Crowley) The CW

Supernatural season 10 returns with all an new episode on Tuesday, 18 November at 9 pm ET on The CW.

The sixth episode is titled Ask Jeeves, where Dean gets a surprising message from Bobby's cell phone, and the Winchester brothers struggle to solve a murder mystery.

Click here to watch the episode online.

The official synopsis reads:

Dean (Jensen Ackles) is surprised when he checks Bobby's cell phone and hears a message that says Bobby or his next of kin have been named as beneficiary in an heiress' will. Hoping that means extra money, Dean talks Sam (Jared Padalecki) into hitting the road to claim their fortune. However, what they encounter at the house is far from a treasure chest.

Last week's 200th episode showcased the emotional journey of Sam and Dean with Carry On Wayward Son performance as a tribute to the brothers.

Following the abduction of a teacher, Winchesters showed up in the school to investigate the case, and were surprised with the musical stage play titled Supernaturals.

The episode ended with a twist - Chuck Shurley, who wrote the Supernatural book series, under the pen name Carver Edlund, appeared in the last few minutes.

Chuck, who was also the Angel's Prophet, disappeared in the Season 5 finale Swan Song.

Rob Benedict, who plays the Prophet, tweeted:

Watch Ask Jeeves promo here: