Who is Sylvia?

1. Eagles Sometimes Can't Fly1969-09-27 2. Color Her Missing1969-10-04 3. Return to Summer Grove1969-10-11 4. The Playground1969-10-18 5. A Question of Midnight1969-10-25 6. A Penny for the Peep Show1970-03-28 7. A Sleep in the Deep1969-11-08 8. Memory: Zero1969-11-22 9. The Nowhere Victim1969-11-29 10. The Sound of Darkness1969-12-06 11. Who Killed Me?1969-12-13 12. Missing: Sun and Sky1969-12-20 13. Tooth of the Serpent1969-12-27 14. Medal for a Hero1970-01-03 15. Walk With a Dead Man1970-01-10 16. A Chance at the Roses1970-01-17 17. Blind Mirror1970-01-24 18. Harlequin's Gold1970-01-31 19. Who is Sylvia?1970-02-07 20. Only One Death to a Customer1970-02-14 21. Fly, Little One1970-02-21 22. The Search for Darrell Andrews1970-02-28 23. Murder Revisited1970-03-07 24. War of Nerves1970-03-14 25. Once Upon a Saturday1970-03-21