This is a speculative for Official Handbook of the Marvel Universe Master Edition #1 (1990), presented in the style and format of the actual series. The issue was published by Marvel Comics, written by Peter Sanderson (with Mark Gruenwald as head writer/editor for the series), and featured art by Eliot R. Brown. OFFICIAL HANDBOOK OF THE MARVEL UNIVERSE: MASTER EDITION #1 Cover Date: December 1990 Cover Price: $2.50 (US) Cover Art: Eliot R. Brown (cutaway schematic of Avengers Mansion)