This guide is for people struggling to find the second secret ending, as seemingly the first person to find it I felt I should make a guide to help others.
It should be noted that I’d prefer people to find the ending themselves but for those that are completely stumped by the second ending, I have made this guide.
With these tools you must make your way to the gravestone stationed to the right of the forest on the lowest stage, essentially heading right as soon as you enter the forest.
Using the shovel you found you can dig the newest grave, the one furthest down, to collect some wires.
Using these wires you can repair the telephone connection, making use of them by heading into the living room of the house to the table next to the door to call for help.
After this call you can continue to play the game exactly the same as the First ending to unlock the second ending and it’s story puzzle.
Thanks to Kindlyspace for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.