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Heartstopper (2022)/S1E5 · Friend/Isaac at the bowling alley: Radio Silence
Heartstopper · Season 1, Episode 5, "Friend"

Isaac at the bowling alley: Radio Silence

Isaac Henderson (Tobie Donovan) · Bowling Alley

Isaac at the bowling alley: Radio Silence. Evidence card from Heartstopper: Radio SilenceGet credit for sleuthing this sceneDrop the frame
Heartstopper · S1 E5Sleuthed by @shelfsleuth
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What it tells you

At the bowling alley Isaac holds Radio Silence, Alice Oseman's 2016 novel, and if you listen to the background you can hear him explaining the plot to Nick. The show's creator put her own book in the hands of a character she invented for the show.

Sources: Every Book Isaac Reads in 'Heartstopper', Netflix Tudum · Heartstopper's book references, Varsity · The Ultimate Heartstopper Reading List, Fountaindale Public Library · Isaac Henderson's reading list, Beathes bibliotek
Every book in Heartstopper43 books →

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The book

Cover of Radio Silence by Alice Oseman

Radio Silence

Alice Oseman · 2016 · YA novel

Radio Silence follows Aled Last, who also turns up in the Heartstopper comics. The show cut Aled and built Isaac in the space he left, so this is Isaac carrying around a book about the guy he replaced. Netflix calls it a tribute. It's also a little like wearing your predecessor's jacket to work.

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The show

Heartstopper key art

Sleuthed by @shelfsleuth · 2026-10-17

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Paused Tuesdays

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Also in Heartstopper

All 43 books
Cover of Dune Messiah by Frank HerbertIsaac's first book: Dune MessiahS1 E1Cover of Naruto, Vol. 72 by Masashi KishimotoIsaac's manga: Naruto, Vol. 72S1 E2Cover of Quantum Mechanics: The Theoretical Minimum by Leonard Susskind and Art FriedmanIsaac's physics for fun: Quantum Mechanics: The Theoretical MinimumS1 E3Cover of Proud: My Autobiography by Gareth ThomasIsaac at rugby practice: ProudS1 E4Cover of A Good Girl's Guide to Murder by Holly JacksonIsaac's YA thriller: A Good Girl's Guide to MurderS1 E4Cover of Pride and Prejudice by Jane AustenIsaac's game night Austen: Pride and PrejudiceS1 E5Cover of Gender Explorers: Our Stories of Growing Up Trans and Changing the World by Juno RocheIsaac's lunch reading: Gender ExplorersS1 E7Cover of There Is No Planet B: A Handbook for the Make or Break Years by Mike Berners-LeeIsaac's sports day book: There Is No Planet BS1 E8Cover of Ace of Spades by Faridah Àbíké-ÍyímídéIsaac flips through: Ace of SpadesS2 E1Cover of I Love This Part by Tillie WaldenIsaac's season two opener: I Love This PartS2 E1Cover of The Importance of Being Earnest and Other Plays by Oscar WildeIsaac's Oscar Wilde: The Importance of Being Earnest and Other PlaysS2 E2Cover of We Are Okay by Nina LaCourIsaac's three-episode read: We Are OkayS2 E2
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