In a look ahead at a week of Cambridge and Somerville events, it’s time for the Head of the Charles regatta and the Diwali Festival of Lights in addition to all sorts of readings, concerts, theater, music and drag – and even some wrestling.

In a look ahead at a week of Cambridge and Somerville events, there’s an anthology’s worth of poetry readings, as well as Halloween-season fun from Poe readings to pumpkin carving and cemetery tours, as well as screenings, dance, theater, shopping and music – including “Begin Here” at Longy, which combines visual and aural art.

Dragon Pizza in Somerville’s Davis Square is taking over the space next door to open a game and entertainment venue called Dragon’s Lair.

In a look ahead at a week of Cambridge and Somerville events, there’s a weeklong Cambridge Science Festival, the Honk! Festival of Activist Street Bands, 43rd Annual Oktoberfest, Grolier Poetry Book Shop 95th Anniversary Festival and much more.

In a look ahead at a week of Cambridge and Somerville events, there’s a Bob Moses MathTrail Launch and Parade; “Emotive Land” augmented-reality performance and other dance debuts; a beery class on how to make a New York Times crossword; “Smoke This” Rib Fest; readings, concerts, theater and much more.

In a look ahead at a week of Cambridge and Somerville events, there’s festivals of comedy, hip-hop and Somergloom, plenty of theater and dance, and everything from a Moth Story Slam to a monarch butterfly release celebration.

In a look ahead at a week of Cambridge and Somerville events, there’s a Fresh Pond nature walk and Nature in the City Festival, “Cinema Strange” and free screenings of new Pixar classics, classes in augmented reality and a “Yart Sale” – a citywide yard sale for art.

In a look ahead at a week of Cambridge and Somerville events, there are family bike rides and game nights, a smut slam, comedy with Kathe Farris and a book reading with Imbolo Mbue, as well as music from Mia Asano, John Powhida, Fabiola Mendez and the Bridgeside Cypher crew.

In a look ahead at a week of Cambridge and Somerville events, there’s a Sidewalk Poetry reception and reading, “Suite Talk’ dance piece, Asian American Playwright Collective Playfest, the annual Salsa Squared event, family-friendly “Yellow Bird Chase” at Starlight Square and plenty more music, poetry, literature and art.

Netflix’s smash hit “Stranger Things” combines horror, fantasy and 1980s nostalgia, and not just to the benefit of the streaming service – it also delivered a bump in popularity to the tabletop role-playing game Dungeons & Dragons, played live weekly in Central Square.