Can Protagonists Go Freely Between Timelines In Novels?

I grew up with a pile of dog-eared novels on one side of my bed and a stack of aloud-to-be-weird fanfics bookmarked on the other, so flipping between canon and fan works feels as natural to me as switching playlists. First, I treat canon like the spine of a bookcase — it holds the world together and gives me the characters' baseline voices and rules. When I want the comfort of familiar beats, I dive back into 'The Lord of the Rings' or 'Harry Potter' and savor the canonical lines, the original settings, and the moments that always land for me. Those moments become reference points: what felt earned, what left me wanting more, where a gap yawns open and begs for a fan-written patch. When I head into fanfiction, I put on a different hat. Fanfic is my laboratory. I look for tags — 'fix-it', 'AU', 'hurt/comfort' — to set expectations so nothing sneaks up on me. Sites like Archive of Our Own and FanFiction.net let me filter by rating, relationship, or divergence point; that helps me move freely without getting tripped up by spoilers or tonal whiplash. I also build little mental bookmarks: a scene in canon I loved, a trait I want preserved, and the loose threads I enjoy seeing reworked. Etiquette matters to me too. I try not to act like fanworks invalidate the original, and I respect creators' rights and boundaries. Sometimes I want pure canon fidelity; sometimes I crave a wild AU where a character from 'My Hero Academia' runs a bakery instead of battling villains. Letting myself be picky, curious, and playful lets me move back and forth with delight rather than guilt, and it keeps fandom fun instead of fraught.

I love how anime treats world-hopping like a secret door in a childhood blanket fort — sometimes it's whimsical, sometimes it's bureaucratic, but it's always a storytelling shortcut you can absolutely lose yourself in. In a lot of shows the mechanics fall into a few familiar camps: literal portals and gates (like the spirals in 'Spirited Away' or the gates in 'No Game No Life'), magical pacts or summoning rituals (think contracts or relics that bind someone to another realm), and sci-fi tech (virtual reality meshes in 'Sword Art Online' or time-gates in 'Steins;Gate'). Those frameworks give creators simple rules to play with: travel can be accidental, scheduled, or earnable through quests. What really hooks me is how writers layer consequences on top. Some series treat cross-world travel as free and fun, which turns it into an episodic adventure playground; others make it costly — physical tolls, identity loss, or temporal exile — which gives emotional gravity to every portal scene. I love when a show plants a small rule early on (a gate only opens under a comet, or a charm breaks after three uses) and then pays it off in a later crisis. It turns a neat mechanic into something resonant. If you like tinkering with this idea, try mixing genres: a mundane commuter accidentally stepping through a subway turnstile into a fantasy kingdom, or a scientist discovering that their lab equipment is a map to other worlds. Those collisions of tone are where memorable moments pop, and for me that's why I keep rewatching and re-reading the same conceits in fresh clothes.

I get oddly excited about copyright timelines — it's like waiting for seasons to change, but for movies. In the United States the core rule for so-called 'classic' films that were published long ago is this: if a film was published before 1978 and had the regular notices and renewals, it generally gets protection for 95 years from the date of publication. That means films released in 1928 entered the public domain on January 1, 2024, 1929 on January 1, 2025, and so on. The pace feels slow because of the 1998 extension — officially the Sonny Bono Copyright Term Extension Act — which added 20 years to what used to be a shorter term. Fans jokingly call it the 'Mickey Mouse Protection Act' for good reason: it kept a lot of early studio stuff locked up longer. But the situation isn’t that neat in practice. Some films have multiple layers of rights: the screenplay, the musical score, particular restored versions, and any trademarked characters are separate beasts. So even when the underlying film (the images and motion picture work) hits the public domain, a cleaned-up restoration could still be copyrighted, the soundtrack might remain protected, or a popular character could be protected by trademark law. Internationally it's even more varied — most of Europe uses life-of-the-author-plus-70 years, which affects authorship-credited works differently than a studio-produced film. For cinephiles and creators, that means accessibility improves incrementally, but often with caveats like patchy quality or incomplete releases. Honestly, when a favorite film finally becomes free to share, it still feels like finding a long-lost song on a dusty record shelf — thrilling, messy, and perfect in its own imperfect way.

Honestly, I get a little giddy when a sequel lets a character walk away — it feels human, messy, and alive. I like to think authors do it because stories are mirrors of choices, and letting characters 'go' (physically or emotionally) makes the narrative breathe. Freed characters create new room for conflict and growth: a departure can seed guilt, mystery, or a fresh perspective that forces the remaining cast to recalibrate. In 'Harry Potter' terms, even secondary departures ripple into the main arc; in other works like 'The Last of Us' or 'Mass Effect' style narratives, choices and their consequences are the whole point. There are practical reasons too. Sequels often aim for surprise or raise the stakes by removing a familiar anchor. Sometimes creators want to prevent repetition — keeping someone around can turn a sequel into a retread. Letting them go also opens doors to side stories, spin-offs, or new protagonists. And yes, sometimes it’s about realism: people move on in real life, so fiction that mirrors that feels truer. I also enjoy when an author trusts the audience enough to accept a character’s absence without spoon-feeding closure; it encourages imagination, fan theories, and unruly late-night forums where we speculate like crazy. In short, those departures can be painful, but they often make the world feel larger and worth revisiting with fresh curiosity.

By keeping the scale small and personal. The best time travel stories I've read involve changing a single conversation, saving one person, destroying one letter. The ripple effects are emotional, not historical. The world doesn't change because the president wasn't shot; it changes because the protagonist's brother is now alive and they have to rebuild a relationship. The paradox is a family secret, not a world-breaking event. This keeps the stakes relatable and the mechanics simple enough that glaring logical flaws are less likely to pop up.

Lurking here and loving this discussion. My WIP has two timelines, and I've been struggling with the past one feeling like an info-dump for the present. Seeing the advice about giving each timeline its own stakes and climax is a lightbulb moment. Going to try re-outlining the past plot as its own standalone novella with a proper arc, even if the ending is tragic. Maybe that will give it the urgency it's missing. Thanks, everyone.

Honestly, crossovers feel like the joy of seeing old friends in a reunion — and companies know that vibe sells. I’ve watched franchises nudge characters into each other’s worlds for decades, and it’s rarely random: there’s marketing muscle (new eyeballs), creative curiosity (what if X met Y?), and a license to play outside strict canon rules. When you let a character pop into 'Kingdom Hearts' or the chaos of 'Marvel vs. Capcom', you get spectacle and conversation fuel. Fans share clips, memes, theory posts, and suddenly both properties trend. From a storytelling angle, crossovers offer wiggle room. Canon can be set aside or framed as alternate timelines, dream sequences, or noncanonical events — think how 'Super Smash Bros.' treats fighters as avatars of their franchises rather than strict narrative continuations. That flexibility makes it easier for rights holders to agree to deals because the guest appearance won’t necessarily handcuff future storytelling. On the flip side, that same looseness can create weird continuity headaches if a collaboration becomes beloved and fans want it folded into the official lore. Money matters too: merchandising, DLC, seasonal events, and celebrity cameos drive revenue. But it's not just greed — creators often genuinely geek out about crossovers. I’ve read interviews where writers and designers confess it’s creatively freeing to mash up tones and mechanics. There’s risk (diluting a character, awkward tonal clashes), but done well, crossovers become cultural moments that breathe new life into older properties and make us grin like giddy fans who just spotted a rare cameo.