It’s time to get spooky in the Arizona desert, or, at least, at a Halloween party. Try for tricks and treats at The Theodore’s Halloweek, at Orpheum’s Ghost Tour, or at Lylo’s Spooky Halloween Splash Bash Spectacular.  Note:  All descriptions courtesy of event hosts and edited for clarity.

10.27

The Art & Science of Arachnids
The Art & Science of Arachnids features three themed cubes which hold 100 live arachnids. The Science Cube discusses arachnids that are not spiders or scorpions, deadly spiders of North America and arachnids in medicine. The Arts Cube illustrates the connection we have with arachnids in film, literature and music. The Culture Cube highlights arachnid folklore and mythology, arachnid conservation and arachnids as food. But the arachnophobes need not worry — you can enter without ever engaging with a live arachnid, but we bet you won’t want to miss them. 10:30 a.m. – 4 p.m. $20. Arizona Science Center: 600 E Washington St. Phoenix, AZ; azscience.org // @azscience

10.28

Halloweek
The Theodore’s favorite holiday is just around the corner and we have planned a week of spooktacular events to celebrate! Thursday, Halloween trivia; Friday, Roosevelt Row Trick or Treat; Saturday, haunted bike tour with Blackbird; and Sunday, Halloween costume contest. 7 p.m. Free. The Theodore: 110 E Roosevelt St. Ste. C, Phoenix, AZ; thetheodore.beer // @the_theodore19

10.29

Dia De Los Muertos Halloween Party
Calling all souls… Join CB Live for their official Día De Los Muertos Halloween Party! Costumes encouraged, live music and a witching hour. 8:30 p.m. Free. Copper Blues: 50 W Jefferson St. Phoenix, AZ; copperbluesphoenix.seatengine.com // @copperbluesphx

Orpheum Ghost Tours
Who is Maddie? Why does Harry Nace continue to greet guests? Who or what lurks in the basement dressing rooms? And what has led to Orpheum Theatre being known as one of the most haunted buildings in Downtown Phoenix? Learn the theatre’s secrets and stories on a ghost tour that focuses on the historic landmark’s ghostly guests. Various times. $25. Orpheum Theatre: 203 West Adams St. Phoenix, AZ; pccticketing.com // @fototphx

Thriller Masterclass – Performance Pop-Up
Master the moves from Michael Jackson’s iconic “Thriller” music video on the Herberger Theater Plaza. Learn the iconic steps from teaching artists, while dancing to the fun, spooky sounds of djESPx. This dance class is for all ages and costumes are encouraged. 6:30 p.m. Free. Herberger Theater Center: 222 East Monroe St. Phoenix, AZ; herbergertheater.org // @herbergertheater

10.30

Dining With The Dead
The Hotel San Carlos was known to entertain the likes of Mae West, Marilyn Monroe, Clark Gable and many more! It is rumored many spirits still linger in this infamous spot. The hotel was established in the midst of the roaring 20s. This dinner is a nod to that glamorous era of flappers, bootleggers and old Hollywood style. Come dress in your best suits, gowns, and transport yourself back 100 years in style. Dinner will consist of eight courses, prepared by Chef Brynda Felix. Jazz music will be playing, ghost stories will be told and new memories at the hotel will be made. 6:20-9 p.m. $100+. Hotel San Carlos: 202 N Central Ave. Phoenix, AZ 85004; .thephoenixpalate.com // @thephoenixpalate

Potted Potter Comedy Show
Playing to sold out houses all over the world, the Olivier Award nominated Potted Potter POTTER – The Unauthorized Harry Experience – A Parody by Dan and Jeff takes on the ultimate challenge of condensing all seven Harry Potter books (and a real life game of Quidditch) into 70 hilarious minutes. Even if you don’t know the difference between a horcrux and a Hufflepuff, Potted Potter will make you roar with laughter. The show is perfect for ages six to Dumbledore (who is very old indeed). 7 p.m. $55+. Madison Center for the Arts: 5601 N 16th St. Phoenix, AZ;  themadison.org // @themadisoncfa

Sidewalk Saturday Artisan Market
A weekly celebration of local artisans, connection and community on the sidewalks in the heart of downtown Phoenix’s Roosevelt Row Arts District. Come out, it’s worth the drive. 9 a.m.- 2 p.m. Free. The Churchill: 901 N. 1st St. Phoenix, AZ: thechurchillphx.com/upcoming-events/ // @thechurchillphx

10.31

Halloween Glowga On The Dark Side Of The Moon
We are turning down the lights, turning up the music and turning on the glow at Rott n’ Grapes for Glowga on the Dark Side of the Moon this Halloween. Put on your most obnoxious neon attire and join us for a night of yoga, meditation, sound healing, black lights, glow sticks, music, drinks and commUNITY. They will kick off the evening with body paint, music and drinks. And at 7 p.m. we’ll glow and flow with a 60-minute all levels yoga class, ending with a grounding harmonic sound healing meditation. 6:30 p.m. $25. Rott n’ Grapes: 4750 North Central Ave. Ste. 140, Phoenix, AZ; elevateyogaaz.com // @elevateyogaaz

Lylo’s Spooky Halloween Splash Bash Spectacular
Got Halloween plans? Lenny, the skeleton would love to have you at his party. With Dj Hndsmboiz, a costume contest with fun prizes, and cast members from Love Island USA season 3. Come in your best Halloween costume and enjoy the pool. 6-10 p.m. $20. Rise Uptown: 400 W. Camelback Rd. Phoenix, AZ; riseuptownhotel.com  //  @​​riseuptownhotel