This was shared before on boardgame geek but was removed, so thought of sharing the link here, it has English and Spanish.
https://drive.google.com/drive/mobile/folders/1zR-_WEBrp1uefDN2zSI77mC70SgiQYao?usp=sharing
Thanks but the link leads to an error page
Could you update it ? :)
Edit: Found these links (valid a the moment)
https://www.mediafire.com/file/oeyafu4k339qhvd/HeroQuest+Pocket.zip/file (https://www.mediafire.com/file/oeyafu4k339qhvd/HeroQuest+Pocket.zip/file)
https://mega.nz/file/8UpV0RbC#quPNeVQZ3cQveiF7I32ZHjM4bMqFU4U_uxnD0_EKl0I (https://mega.nz/file/8UpV0RbC#quPNeVQZ3cQveiF7I32ZHjM4bMqFU4U_uxnD0_EKl0I)