Doctor Who Yearbooks Blood Invocation Sets: Doctor Who Yearbook 1995 Doctor Who Yearbooks More votes needed! TARDIS Wiki Share this page {{ shareFeedback }} Copy link {{ copyFeedback }} Overview Reviews Released September 1994 Written by Paul Cornell Publisher Marvel Comics UK Pages 8 Login to track and rate! View Rating Distribution Ratings are from TARDIS Guide members only. Characters Fifth Doctor Tegan Jovanka Nyssa Where to read Blood Invocation: Doctor Who Yearbook 1995 Collected Unowned ⊖Saved to Wishlist ⊕Save to Wishlist The Clockwise War Collected Unowned ⊖Saved to Wishlist ⊕Save to Wishlist