diff --git a/.github/workflows/deploy_book.yml b/.github/workflows/deploy_book.yml
new file mode 100644
index 00000000..4068ec43
--- /dev/null
+++ b/.github/workflows/deploy_book.yml
@@ -0,0 +1,30 @@
+name: github pages
+
+on:
+  push:
+    branches:
+      - main
+      - book
+  pull_request:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-20.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup mdBook
+        uses: peaceiris/actions-mdbook@v1
+        with:
+          mdbook-version: 'latest'
+
+      - run: cd book && mdbook build
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        if: ${{ github.ref == 'refs/heads/main' }}
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./book
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 037dba60..70b1f094 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -24,7 +24,7 @@ dependencies = [
 
 [[package]]
 name = "aiken"
-version = "0.0.13"
+version = "0.0.14"
 dependencies = [
  "anyhow",
  "clap",
@@ -849,7 +849,7 @@ checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
 
 [[package]]
 name = "uplc"
-version = "0.0.13"
+version = "0.0.14"
 dependencies = [
  "anyhow",
  "cryptoxide",
diff --git a/book/.gitignore b/book/.gitignore
new file mode 100644
index 00000000..7585238e
--- /dev/null
+++ b/book/.gitignore
@@ -0,0 +1 @@
+book
diff --git a/book/book.toml b/book/book.toml
new file mode 100644
index 00000000..7d9bc99d
--- /dev/null
+++ b/book/book.toml
@@ -0,0 +1,6 @@
+[book]
+authors = ["Ch1n3du"]
+language = "en"
+multilingual = false
+src = "src"
+title = "The Aiken Programming Language"
diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
new file mode 100644
index 00000000..7390c828
--- /dev/null
+++ b/book/src/SUMMARY.md
@@ -0,0 +1,3 @@
+# Summary
+
+- [Chapter 1](./chapter_1.md)
diff --git a/book/src/chapter_1.md b/book/src/chapter_1.md
new file mode 100644
index 00000000..b743fda3
--- /dev/null
+++ b/book/src/chapter_1.md
@@ -0,0 +1 @@
+# Chapter 1
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 6208b13a..10e29dd3 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "aiken"
 description = "Cardano smart contract language and toolchain"
-version = "0.0.13"
+version = "0.0.14"
 edition = "2021"
 repository = "https://github.com/txpipe/aiken"
 homepage = "https://github.com/txpipe/aiken"
@@ -21,4 +21,4 @@ pallas-primitives = "0.14.0-alpha.3"
 pallas-traverse = "0.14.0-alpha.3"
 serde = { version = "1.0.144", features = ["derive"] }
 serde_json = "1.0.85"
-uplc = { path = '../uplc', version = "0.0.13" }
+uplc = { path = '../uplc', version = "0.0.14" }
diff --git a/crates/uplc/Cargo.toml b/crates/uplc/Cargo.toml
index a3a4131a..2075b727 100644
--- a/crates/uplc/Cargo.toml
+++ b/crates/uplc/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "uplc"
 description = "Utilities for working with Untyped Plutus Core"
-version = "0.0.13"
+version = "0.0.14"
 edition = "2021"
 repository = "https://github.com/txpipe/aiken/crates/uplc"
 homepage = "https://github.com/txpipe/aiken"
diff --git a/crates/uplc/src/tx.rs b/crates/uplc/src/tx.rs
index 8996efd0..1030742d 100644
--- a/crates/uplc/src/tx.rs
+++ b/crates/uplc/src/tx.rs
@@ -116,7 +116,7 @@ pub fn eval_phase_two_raw(
                     .iter()
                     .map(|r| r.encode_fragment().unwrap())
                     .collect()),
-                Err(_) => Err(Error::NoRedeemers),
+                Err(err) => Err(err),
             }
         }
         // MultiEraTx::AlonzoCompatible(tx, _) => match eval_tx(&tx, &utxos, &sc) {