diff --git a/poc.sh b/poc.sh
index 03e9851..ed2735c 100644
--- a/poc.sh
+++ b/poc.sh
@@ -1,28 +1,88 @@
 #! /bin/bash
 
+
 main() {
-   _main "$@"
+   set -e
+   set -o pipefail
+
+   local output="$(mktemp -d)"
+   log "$output"
+
+   #list_chapters_in_book https://www.dndbeyond.com/sources/sdw
+
+   #scrape_book_chapter https://www.dndbeyond.com/sources/phb/races | less
+   #scrape_book_chapter https://www.dndbeyond.com/sources/phb/appendix-a-conditions | less
+
+   #scrape_book "$output" https://www.dndbeyond.com/sources/phb
+
+   for book in $(scrape_books); do
+      book="${book%/}"
+      log book=$book
+      scrape_book "$output/${book##*/}" "$book"
+      break
+   done
+
+
+   log "$output"
 }
 
-_main() {
-   for url in $(
-      scrape_dndbeyond https://www.dndbeyond.com/sources/phb \
-      | grep -o 'https:..www.dndbeyond.com.compendium[^"]*' \
+log() {
+   echo "$(date) > $*" >&2
+}
+
+scrape_books() {
+   scrape_dndbeyond "https://www.dndbeyond.com/sources#Sourcebooks" \
+      | grep class..sources-listing--item \
+      | grep href=.*sources \
+      | grep -o 'href="[^"]*' \
+      | sed 's/^href="//' \
+      | sed 's/^\///' \
+      | sed 's/^/\//' \
+      | sed 's/^/https:\/\/www.dndbeyond.com/'
+}
+
+scrape_book() {
+   local output="$1"
+   local book_url="$2"
+
+   mkdir -p "$output"
+   local f="$(mktemp)"
+
+   for chapter in $(list_chapters_in_book "$book_url"); do
+      log chapter=$chapter
+      scrape_book_chapter "$chapter" > "$f"
+      local title="$(grep -E 'Chapter|Appendix' "$f" | head -n 1 | sed 's/^\#*//' | sed 's/^[ ]*//' | sed 's/[ ]*$//')"
+      mv "$f" "$output"/"$title"
+   done
+
+   rm "$f"
+}
+
+scrape_book_chapter() {
+   local url="$1"
+   scrape_dndbeyond $url \
+      | html_to_markdown
+}
+
+list_chapters_in_book() {
+   local book_url="${1%/}"
+   local raw="$(scrape_dndbeyond "$book_url")"
+   if echo "$raw" | grep -q 'https:..www.dndbeyond.com.compendium[^"]*'; then
+      echo "$raw" | grep -o 'https:..www.dndbeyond.com.compendium[^"]*'
+   elif echo "$raw" | grep -q "$book_url/"; then
+      echo "$raw" | grep -o "${book_url//\//.}\/[^\"]*"
+   else
+      echo "ERROR: FOUND NO CHAPTERS IN $book_url" >&2
+      return 1
+   fi \
       | sed 's/#.*//' \
       | sort -u
-   ); do
-      echo $url
-      scrape_dndbeyond $url \
-         | html_to_markdown \
-         | less
-         break
-      done
 }
 
 scrape_dndbeyond() {
    rate_limit_1s scrape_dndbeyond
    curl -L -sS \
-      "${1:-https://www.dndbeyond.com/sources/phb}" \
+      "$1" \
       --compressed \
       -H 'Cookie: Preferences=undefined; Preferences=undefined; _pxhd=NHdkEjOXnAEHojER86i0Egmnm85GLvifiQxURPISwVtzWLNwuqQbIk1Y/2MjheQqNP4CsBXhuc4UG5-qcmLjYw==:hGx3TOEjeVaJPMfrXXnmyG7-btpQhZutwvpVBKwEbNXTAkEQvgmIs/faKB6s8537Nivj6epH9HpOWYURQeazeMwSMReW6EMazW09Rci-PJI=; ResponsiveSwitch.DesktopMode=1; ddbSiteBanner:00523ca3-81a4-4d2a-8f86-9e40273af2e2=true; LoginState=2c011278-8a3d-4cf7-a141-221f42694333; G_ENABLED_IDPS=google; CobaltSession=eyJhbGciOiJkaXIiLCJlbmMiOiJBMTI4Q0JDLUhTMjU2In0..vh9-_2G_aEjMvJ2PFAAE4w.eheZuOJLp-3NyiAJZzKqaSc91lH0ganCRsDZPYMGIG3265AppaHh0uMQLu_-P6WX.bHRi_gX8PKtQGZwVmNeb1Q; Preferences.Language=1; Preferences.TimeZoneID=1; ddbSiteBanner:d8879cae-c68e-4411-9ea0-a49d77fe5454=true; Ratings=null; _pxvid=f6abe72c-49a6-11ec-b844-57447254714c; ddbSiteBanner:fd981371-c501-4638-a64b-0d9a5c8da68b=true; Geo={%22region%22:%22ON%22%2C%22country%22:%22CA%22%2C%22continent%22:%22NA%22}; RequestVerificationToken=983cd9ce-c03c-4b8b-b6c1-a0561b39cb47; sublevel=ANON; Preferences=undefined; User.ID=109926924; User.Username=squeaky2x3; UserInfo={"UserId":109926924,"UserJoinDate":"2021-03-25","UserSessionId":"77896779-c672-42d1-903b-f6caba6ec599"}; pxcts=5eb1b230-525e-11ec-aa22-793bf1473016; WarningNotification.Lock=1' \
       -H 'User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Firefox/91.0' \
@@ -42,14 +102,18 @@ scrape_dndbeyond() {
 }
 
 html_to_markdown() {
-   pandoc -f html -t markdown --ascii --toc --wrap=none --strip-comments -o - \
-   | sed '/^:::.*/d' \
-   | sed -e '/^# Chapter/p' -e '0,/^# Chapter/d' \
-   | sed -e '/^Share$/,$d' \
-   | sed 's/^\(\#\#*\) \[](#\([^)]*\))/\1 /' \
-   | sed 's/{#\([^ ]*\)[^}]*}/\n\n<a name="\1"><\/a>/' \
-   | sed 's/\[\([^]]*\)]\(([^)]*)\)*\({[^}]*}\)*/\1/g' \
-   | sed "s/\\\\\([\"']\)/\1/g"
+   local out="$(
+      pandoc -f html -t markdown --ascii --toc --wrap=none --strip-comments -o - \
+      | sed '/^:::.*/d' \
+      | sed -e '/^Share$/,$d' \
+      | sed 's/^\(\#\#*\) \[](#\([^)]*\))/\1 /' \
+      | sed 's/{#\([^ ]*\)[^}]*}/\n\n<a name="\1"><\/a>/' \
+      | sed 's/\[\([^]]*\)]\(([^)]*)\)*\({[^}]*}\)*/\1/g' \
+      | sed "s/\\\\\([\"']\)/\1/g"
+   )"
+   local target="$(echo "$out" | grep -q '^[#]* Appendix' && echo Appendix || echo Chapter)"
+   echo "$out" \
+      | sed -e '/^# '"$target"'/p' -e '0,/^# '"$target"'/d'
 }
 
 rate_limit_1s() {
@@ -58,14 +122,14 @@ rate_limit_1s() {
    mkdir -p "$d"
    local last_run="$(date -r "$d/$name" +%s)"
    local now="$(date +%s)"
-   local interval=2
-   echo "$(date +%s): should sleep while $(($(date +%s)-last_run)) < $interval" >&2
+   local interval=3
+   log "should sleep while $(($(date +%s)-last_run)) < $interval"
    if [ -f "$d/$name" ]; then
       while [ "$(($(date +%s)-last_run))" -lt $interval ]; do
          sleep 1
       done
    fi
-   echo "$(date +%s): done sleeping" >&2
+   log "done sleeping"
    touch "$d/$name"
 }