It works!

views/pages/markdown_page.rb

@@ -0,0 +1,20 @@
+module BC
+    module Views
+        module Pages
+            class MarkdownPage < ::Phlex::HTML
+                def initialize(content, title, prev, fwd)
+                    @content = content
+                    @title = title
+                    @prev = prev
+                    @fwd = fwd
+                end
+
+                def view_template
+                    render PageLayout.new(@title, @prev, @fwd) do
+                        unsafe_raw Kramdown::Document.new(@content).to_html
+                    end
+                end
+            end
+        end
+    end
+end