This issue has variants.
Letters page replies by Don McGregor. Letters page letter from Ken Meyer, Jr. Crespi credit per Nick Caputo, August 2012. Original indexer credited Gaspar Saladino.
Origin of Carmilla Frost and Grok, deaths of Hawk and Grok, destruction of Skar.
Includes letters from (and replies to) Kathleen Shaw and Ken Meyer Jr. Also includes a next issue box and Marvel Value Stamp #10 from series B.