Fics like Return to Sender

An assassination goes wrong when Alex Rider realizes the target is protected by rules he doesn’t understand and killers who all seem to know each other. The moment John Wick hears there’s a young contract killer operating in the city, he starts asking questions Alex really doesn’t want answered.

You may also like

1. When There Was No Dream of Mine by firecat (John Wick (Movies), Constantine (2005))
2. A Most Unusual Houseguest by river_ally (Alex Rider - Anthony Horowitz, Addams Family - All Media Types)
3. The Right Kind of Problem by river_ally (Alex Rider - Anthony Horowitz, Katekyou Hitman Reborn!)
4. Better Odds by river_ally (Alex Rider - Anthony Horowitz, X-Men - All Media Types, more)
5. The Devil’s Due by river_ally (Alex Rider - Anthony Horowitz, Constantine (Comics))
6. it's time to go by Snoweylily (Alex Rider - Anthony Horowitz)
7. The Enigma That Is by Skendo (Alex Rider - Anthony Horowitz, The Walking Dead (TV), more)
8. Standard Procedure by river_ally (Alex Rider - Anthony Horowitz)
9. Lost in Transit by Oceanbreeze7 (Alex Rider - Anthony Horowitz)
10. Killed In Action by river_ally (Alex Rider - Anthony Horowitz)
11. Say Them Very Quietly by RayShippouUchiha (Teen Wolf (TV), John Wick (Movies))
12. Plausible Deniability by river_ally (Alex Rider - Anthony Horowitz, NCIS (TV 2003))
13. Adoption Criteria by river_ally (Alex Rider - Anthony Horowitz, Batman - All Media Types)
14. Alex Rider's Normal University Experience by secretsinmyhead (Alex Rider - Anthony Horowitz, Alex Rider (TV 2020))
15. Witness by TheInverseUniverse (Alex Rider (TV 2020), Alex Rider - Anthony Horowitz)
16. Off the Record by river_ally (Alex Rider - Anthony Horowitz, Kingsman (Movies))
17. Point of Divergence by pongnosis (Alex Rider - Anthony Horowitz)
18. Retribution by Lil_Lupin (Alex Rider - Anthony Horowitz)
19. Anomaly Detected by river_ally (Alex Rider - Anthony Horowitz, Marvel Cinematic Universe)
20. Collision by coffee_was_a_mistake (Alex Rider - Anthony Horowitz)